All 5000 sequences
Every sequence in decompwlj 3D, by A-number, with the share of its decomposable terms in the level class (k > L). Each has its own page with its weight–level plate and counts, and opens in the interactive 3-D viewer.
- primes · 1717
- polynomial · 1232
- quadratic form · 430
- prime values · 423
- residue class · 357
- digit rule · 306
- multiplicative · 199
- Beatty · 86
- divisor functions · 58
- binary rule · 48
- self-referential · 35
- complement · 23
- powers · 22
- summatory · 21
- arithmetic progression · 10
- smooth · 10
- forced divisor · 9
- sieve · 8
- block · 5
- base case · 1
| A-number | Name | Family | Level |
|---|---|---|---|
| A000027 | The positive integers. Also called the natural numbers, the whole numbers or the counting numbers, but these terms are ambiguous | base case | 9.6 % |
| A000028 | Let k = p_1^e_1 p_2^e_2 p_3^e_3 ... be the prime factorization of n. Sequence gives k such that the sum of the numbers of 1's in the binary expansions of e_1, e_2, e_3, ... is odd | multiplicative | 12.7 % |
| A000037 | Numbers that are not squares (or, the nonsquares) | complement | 9.6 % |
| A000040 | The prime numbers | primes | 23.0 % |
| A000062 | A Beatty sequence: a(n) = floor(n/(e-2)) | Beatty | 11.2 % |
| A000069 | Odious numbers: numbers with an odd number of 1's in their binary expansion | binary rule | 11.0 % |
| A000093 | a(n) = floor(n^(3/2)) | polynomial | 46.6 % |
| A000096 | a(n) = n*(n+3)/2 | polynomial | 100.0 % |
| A000124 | Central polygonal numbers (the Lazy Caterer's sequence): n(n+1)/2 + 1; or, maximal number of pieces formed when slicing a pancake with n cuts | polynomial | 100.0 % |
| A000125 | Cake numbers: maximal number of pieces resulting from n planar cuts through a cube (or cake): C(n+1,3) + n + 1 | polynomial | 100.0 % |
| A000201 | Lower Wythoff sequence (a Beatty sequence): a(n) = floor(n*phi), where phi = (1+sqrt(5))/2 = A001622 | Beatty | 12.2 % |
| A000212 | a(n) = floor(n^2/3) | polynomial | 100.0 % |
| A000217 | Triangular numbers: a(n) = binomial(n+1,2) = n*(n+1)/2 = 0 + 1 + 2 + ... + n | polynomial | 100.0 % |
| A000290 | The squares: a(n) = n^2 | polynomial | 100.0 % |
| A000292 | Tetrahedral (or triangular pyramidal) numbers: a(n) = C(n+2,3) = n*(n+1)*(n+2)/6 | polynomial | 100.0 % |
| A000297 | a(n) = (n+1)*(n+3)*(n+8)/6 | polynomial | 100.0 % |
| A000326 | Pentagonal numbers: a(n) = n*(3*n-1)/2 | polynomial | 100.0 % |
| A000330 | Square pyramidal numbers: a(n) = 0^2 + 1^2 + 2^2 + ... + n^2 = n*(n+1)*(2*n+1)/6 | polynomial | 100.0 % |
| A000378 | Sums of three squares: numbers of the form x^2 + y^2 + z^2 | quadratic form | 8.5 % |
| A000379 | Numbers where total number of 1-bits in the exponents of their prime factorization is even; a 2-way classification of integers: complement of A000028 | multiplicative | 12.7 % |
| A000384 | Hexagonal numbers: a(n) = n*(2*n-1) | polynomial | 100.0 % |
| A000401 | Numbers of form x^2 + y^2 + 2*z^2 | quadratic form | 10.4 % |
| A000404 | Numbers that are the sum of 2 nonzero squares | quadratic form | 16.0 % |
| A000408 | Numbers that are the sum of three nonzero squares | quadratic form | 8.6 % |
| A000415 | Numbers that are the sum of 2 but no fewer nonzero squares | multiplicative | 16.0 % |
| A000419 | Numbers that are the sum of 3 but no fewer nonzero squares | quadratic form | 12.6 % |
| A000430 | Primes and squares of primes | multiplicative | 23.0 % |
| A000447 | a(n) = 1^2 + 3^2 + 5^2 + 7^2 + ... + (2*n-1)^2 = n*(4*n^2 - 1)/3 | polynomial | 100.0 % |
| A000566 | Heptagonal numbers (or 7-gonal numbers): n*(5*n-3)/2 | polynomial | 100.0 % |
| A000567 | Octagonal numbers: n*(3*n-2). Also called star numbers | polynomial | 100.0 % |
| A000578 | The cubes: a(n) = n^3 | polynomial | 100.0 % |
| A000695 | Moser-de Bruijn sequence: sums of distinct powers of 4 | binary rule | 14.0 % |
| A000787 | Strobogrammatic numbers: the same upside down | digit rule | 93.4 % |
| A000788 | Total number of 1's in binary expansions of 0, ..., n | summatory | 24.1 % |
| A000959 | Lucky numbers | sieve | 32.3 % |
| A000960 | Flavius Josephus's sieve: Start with the natural numbers; at the k-th sieving step, remove every (k+1)-st term of the sequence remaining after the (k-1)-st sieving step; iterate | sieve | 96.6 % |
| A000961 | Powers of primes. Alternatively, 1 and the prime powers (p^k, p prime, k >= 1) | powers | 23.0 % |
| A000966 | n! never ends in this many 0's | digit rule | 19.4 % |
| A000977 | Numbers that are divisible by at least three different primes | multiplicative | 13.8 % |
| A001043 | Numbers that are the sum of 2 successive primes | primes | 24.9 % |
| A001082 | Generalized octagonal numbers: k*(3*k-2), k=0, +- 1, +- 2, +-3, .. | polynomial | 100.0 % |
| A001093 | a(n) = n^3 + 1 | polynomial | 100.0 % |
| A001097 | Twin primes | primes | 19.7 % |
| A001101 | Moran numbers: k such that k/(sum of digits of k) is prime | digit rule | 35.6 % |
| A001105 | a(n) = 2*n^2 | polynomial | 100.0 % |
| A001106 | 9-gonal (or enneagonal or nonagonal) numbers: a(n) = n*(7*n-5)/2 | polynomial | 100.0 % |
| A001107 | 10-gonal (or decagonal) numbers: a(n) = n*(4*n-3) | polynomial | 100.0 % |
| A001122 | Primes with primitive root 2 | primes | 30.5 % |
| A001132 | Primes == +-1 (mod 8) | primes | 28.3 % |
| A001196 | Double-bitters: only even length runs in binary expansion | binary rule | 14.0 % |
| A001248 | Squares of primes | powers | 100.0 % |
| A001318 | Generalized pentagonal numbers: m*(3*m - 1)/2, m = 0, +-1, +-2, +-3, ... | polynomial | 77.6 % |
| A001358 | Semiprimes (or biprimes): products of two primes | multiplicative | 15.7 % |
| A001359 | Lesser of twin primes | primes | 47.8 % |
| A001363 | Primes in ternary | digit rule | 27.9 % |
| A001463 | Partial sums of A001462; also a(n) is the last occurrence of n in A001462 | self-referential | 55.9 % |
| A001481 | Numbers that are the sum of 2 squares | multiplicative | 15.9 % |
| A001504 | a(n) = (3*n+1)*(3*n+2) | polynomial | 100.0 % |
| A001513 | a(n) = (6*n+1)*(6*n+5) | polynomial | 100.0 % |
| A001526 | a(n) = (7*n+1)*(7*n+6) | polynomial | 100.0 % |
| A001533 | a(n) = (8*n+1)*(8*n+7) | polynomial | 100.0 % |
| A001534 | a(n) = (9*n+1)*(9*n+8) | polynomial | 100.0 % |
| A001535 | a(n) = (10n+1)*(10n+9) | polynomial | 100.0 % |
| A001536 | a(n) = (11*n+1)*(11*n+10) | polynomial | 100.0 % |
| A001538 | a(n) = (12*n+1)*(12*n+11) | polynomial | 100.0 % |
| A001539 | a(n) = (4*n+1)*(4*n+3) | polynomial | 100.0 % |
| A001545 | a(n) = (5*n+1)*(5*n+4) | polynomial | 100.0 % |
| A001597 | Perfect powers: m^k where m > 0 and k >= 2 | powers | 99.3 % |
| A001633 | Numbers with an odd number of digits | digit rule | 9.2 % |
| A001637 | Numbers with an even number of digits | digit rule | 8.7 % |
| A001651 | Numbers not divisible by 3 | forced divisor | 0.0 % |
| A001690 | Non-Fibonacci numbers | complement | 9.6 % |
| A001694 | Powerful numbers, definition (1): if a prime p divides n then p^2 must also divide n (also called squareful, square full, square-full or 2-powerful numbers) | multiplicative | 71.9 % |
| A001704 | a(n) = n concatenated with n + 1 | digit rule | 100.0 % |
| A001729 | List of numbers whose digits contain no loops (version 1) | digit rule | 15.0 % |
| A001740 | Squares written in base 5 | digit rule | 100.0 % |
| A001741 | Squares written in base 6 | digit rule | 100.0 % |
| A001742 | Numbers whose digits contain no loops (version 2) | digit rule | 17.1 % |
| A001743 | Numbers in which every digit contains at least one loop (version 1) | digit rule | 13.5 % |
| A001744 | Numbers n such that every digit contains a loop (version 2) | digit rule | 13.7 % |
| A001745 | Numbers such that at least one digit contains a loop (version 2). Also called "holey" or "holy" numbers | digit rule | 9.8 % |
| A001746 | At least one digit contains a loop (version 1) | digit rule | 9.9 % |
| A001748 | a(n) = 3 * prime(n) | primes | 23.0 % |
| A001749 | Primes multiplied by 4 | primes | 23.0 % |
| A001751 | Primes together with primes multiplied by 2 | primes | 15.3 % |
| A001768 | Sorting numbers: number of comparisons for merge insertion sort of n elements | summatory | 28.3 % |
| A001838 | Numbers k such that phi(k+2) = phi(k) + 2 | divisor functions | 44.8 % |
| A001840 | Expansion of g.f. x/((1 - x)^2*(1 - x^3)) | polynomial | 65.7 % |
| A001844 | Centered square numbers: a(n) = 2*n*(n+1)+1. Sums of two consecutive squares. Also, consider all Pythagorean triples (X, Y, Z=Y+1) ordered by increasing Z; then sequence gives Z values | polynomial | 100.0 % |
| A001845 | Centered octahedral numbers (crystal ball sequence for cubic lattice) | polynomial | 100.0 % |
| A001855 | Sorting numbers: maximal number of comparisons for sorting n elements by binary insertion | summatory | 32.0 % |
| A001859 | Triangular numbers plus quarter-squares: n*(n+1)/2 + floor((n+1)^2/4) (i.e., A000217(n) + A002620(n+1)) | polynomial | 100.0 % |
| A001912 | Numbers k such that 4*k^2 + 1 is prime | prime values | 23.9 % |
| A001913 | Full reptend primes: primes with primitive root 10 | primes | 30.7 % |
| A001950 | Upper Wythoff sequence (a Beatty sequence): a(n) = floor(n*phi^2), where phi = (1+sqrt(5))/2 | Beatty | 15.4 % |
| A001951 | A Beatty sequence: a(n) = floor(n*sqrt(2)) | Beatty | 11.4 % |
| A001952 | A Beatty sequence: a(n) = floor(n*(2 + sqrt(2))) | Beatty | 17.2 % |
| A001953 | a(n) = floor((n + 1/2) * sqrt(2)) | Beatty | 11.3 % |
| A001954 | a(n) = floor((n+1/2)*(2+sqrt(2))); winning positions in the 2-Wythoff game | Beatty | 17.3 % |
| A001961 | A Beatty sequence: floor(n * (sqrt(5) - 1)) | Beatty | 10.6 % |
| A001969 | Evil numbers: nonnegative integers with an even number of 1's in their binary expansion | binary rule | 11.4 % |
| A001974 | Numbers that are the sum of 3 distinct squares, i.e., numbers of the form x^2 + y^2 + z^2 with 0 <= x < y < z | quadratic form | 8.6 % |
| A001983 | Numbers that are the sum of 2 distinct squares: of form x^2 + y^2 with 0 <= x < y | quadratic form | 16.0 % |
| A002035 | Numbers that contain primes to odd powers only | multiplicative | 10.1 % |
| A002061 | Central polygonal numbers: a(n) = n^2 - n + 1 | polynomial | 100.0 % |
| A002081 | Numbers congruent to {2, 4, 8, 16} (mod 20) | residue class | 0.0 % |
| A002088 | Sum of totient function: a(n) = Sum_{k=1..n} phi(k), cf. A000010 | summatory | 87.3 % |
| A002113 | Palindromes in base 10 | digit rule | 71.7 % |
| A002144 | Pythagorean primes: primes of the form 4*k + 1 | primes | 28.0 % |
| A002145 | Primes of the form 4*k + 3 | primes | 28.2 % |
| A002202 | Values taken by totient function phi(m) (A000010) | divisor functions | 12.6 % |
| A002327 | Primes of the form k^2 - k - 1 | primes | 100.0 % |
| A002328 | Numbers k such that k^2 - k - 1 is prime | prime values | 20.3 % |
| A002378 | Oblong (or promic, pronic, or heteromecic) numbers: a(n) = n*(n+1) | polynomial | 100.0 % |
| A002383 | Primes of form k^2 + k + 1 | primes | 100.0 % |
| A002384 | Numbers m such that m^2 + m + 1 is prime | prime values | 24.7 % |
| A002407 | Cuban primes: primes which are the difference of two consecutive cubes | primes | 100.0 % |
| A002411 | Pentagonal pyramidal numbers: a(n) = n^2*(n+1)/2 | polynomial | 100.0 % |
| A002412 | Hexagonal pyramidal numbers, or greengrocer's numbers | polynomial | 100.0 % |
| A002413 | Heptagonal (or 7-gonal) pyramidal numbers: a(n) = n*(n+1)*(5*n-2)/6 | polynomial | 100.0 % |
| A002414 | Octagonal pyramidal numbers: a(n) = n*(n+1)*(2*n-1)/2 | polynomial | 100.0 % |
| A002440 | Squares written in base 7 | digit rule | 100.0 % |
| A002441 | Squares written in base 8 | digit rule | 100.0 % |
| A002442 | Squares written in base 9 | digit rule | 100.0 % |
| A002476 | Primes of the form 6m + 1 | primes | 35.2 % |
| A002479 | Numbers of the form x^2 + 2*y^2 | quadratic form | 14.9 % |
| A002480 | Numbers of the form 2x^2 + 3y^2 | quadratic form | 22.3 % |
| A002481 | Numbers of form x^2 + 6y^2 | quadratic form | 22.8 % |
| A002492 | Sum of the first n even squares: a(n) = 2*n*(n+1)*(2*n+1)/3 | polynomial | 100.0 % |
| A002496 | Primes of the form k^2 + 1 | primes | 100.0 % |
| A002522 | a(n) = n^2 + 1 | polynomial | 100.0 % |
| A002620 | Quarter-squares: a(n) = floor(n/2)*ceiling(n/2). Equivalently, a(n) = floor(n^2/4) | polynomial | 100.0 % |
| A002623 | Expansion of 1/((1-x)^4*(1+x)) | polynomial | 100.0 % |
| A002717 | a(n) = floor(n(n+2)(2n+1)/8) | polynomial | 100.0 % |
| A002731 | Numbers k such that (k^2 + 1)/2 is prime | prime values | 33.0 % |
| A002796 | Numbers that are divisible by each nonzero digit | digit rule | 13.9 % |
| A002808 | The composite numbers: numbers n of the form x*y for x > 1 and y > 1 | complement | 10.6 % |
| A002815 | a(n) = n + Sum_{k=1..n} pi(k), where pi() = A000720 | summatory | 70.2 % |
| A002821 | a(n) = nearest integer to n^(3/2) | polynomial | 46.9 % |
| A002822 | Numbers m such that 6m-1, 6m+1 are twin primes | primes | 31.7 % |
| A002837 | Numbers k such that k^2 - k + 41 is prime | prime values | 16.1 % |
| A002858 | Ulam numbers: a(1) = 1; a(2) = 2; for n>2, a(n) = least number > a(n-1) which is a unique sum of two distinct earlier terms | self-referential | 21.9 % |
| A002859 | a(1) = 1, a(2) = 3; for n >= 3, a(n) is smallest number that is uniquely of the form a(j) + a(k) with 1 <= j < k < n | self-referential | 20.6 % |
| A002939 | a(n) = 2*n*(2*n-1) | polynomial | 100.0 % |
| A002943 | a(n) = 2*n*(2*n+1) | polynomial | 100.0 % |
| A002970 | Numbers k such that 4*k^2 + 9 is prime | prime values | 23.3 % |
| A002971 | Numbers k such that 4*k^2 + 25 is prime | prime values | 18.8 % |
| A002977 | Klarner-Rado sequence: a(1) = 1; subsequent terms are defined by the rule that if m is present so are 2m+1 and 3m+1 | self-referential | 23.6 % |
| A002984 | a(0) = 1; for n > 0, a(n) = a(n-1) + floor(sqrt(a(n-1))) | self-referential | 100.0 % |
| A003052 | Self numbers or Colombian numbers (numbers that are not of the form m + sum of digits of m for any m) | digit rule | 24.9 % |
| A003072 | Numbers that are the sum of 3 positive cubes | quadratic form | 22.0 % |
| A003136 | Loeschian numbers: numbers of the form x^2 + xy + y^2; norms of vectors in A2 lattice | quadratic form | 24.2 % |
| A003151 | Beatty sequence for 1+sqrt(2); a(n) = floor(n*(1+sqrt(2))) | Beatty | 14.9 % |
| A003152 | A Beatty sequence: a(n) = floor(n*(1+1/sqrt(2))) | Beatty | 12.5 % |
| A003154 | Centered 12-gonal numbers, or centered dodecagonal numbers: numbers of the form 6*k*(k-1) + 1 | polynomial | 100.0 % |
| A003159 | Numbers whose binary representation ends in an even number of zeros | binary rule | 13.9 % |
| A003185 | a(n) = (4*n+1)*(4*n+5) | polynomial | 100.0 % |
| A003215 | Hex (or centered hexagonal) numbers: 3*n*(n+1)+1 (crystal ball sequence for hexagonal lattice) | polynomial | 100.0 % |
| A003219 | Self numbers divisible by sum of their digits (or, self numbers which are also Harshad numbers) | digit rule | 33.2 % |
| A003231 | a(n) = floor(n*(sqrt(5)+5)/2) | Beatty | 17.7 % |
| A003277 | Cyclic numbers: k such that k and phi(k) are relatively prime; also k such that there is just one group of order k, i.e., A000001(k) = 1 | divisor functions | 15.1 % |
| A003278 | Szekeres's sequence: a(n)-1 in ternary = n-1 in binary; also: a(1) = 1, a(2) = 2, and thereafter a(n) is smallest number k which avoids any 3-term arithmetic progression in a(1), a(2), ..., a(n-1), k | digit rule | 0.4 % |
| A003309 | Ludic numbers: apply the same sieve as Eratosthenes, but cross off every k-th remaining number | sieve | 27.2 % |
| A003325 | Numbers that are the sum of 2 positive cubes | quadratic form | 50.1 % |
| A003485 | Hurwitz-Radon function at powers of 2 | powers | 4.5 % |
| A003511 | A Beatty sequence: floor( n * (1 + sqrt(3))/2 ) | Beatty | 11.3 % |
| A003512 | A Beatty sequence: floor(n*(sqrt(3) + 2)) | Beatty | 18.0 % |
| A003600 | Maximal number of pieces obtained by slicing a torus (or a bagel) with n cuts: (n^3 + 3*n^2 + 8*n)/6 (n > 0) | polynomial | 100.0 % |
| A003601 | Numbers j such that the average of the divisors of j is an integer: sigma_0(j) divides sigma_1(j). Alternatively, numbers j such that tau(j) (A000005(j)) divides sigma(j) (A000203(j)) | divisor functions | 11.9 % |
| A003607 | Location of 0's when natural numbers are listed in binary | binary rule | 12.9 % |
| A003622 | The Wythoff compound sequence AA: a(n) = floor(n*phi^2) - 1, where phi = (1+sqrt(5))/2 | Beatty | 15.5 % |
| A003623 | Wythoff AB-numbers: floor(floor(n*phi^2)*phi), where phi = (1+sqrt(5))/2 | Beatty | 18.6 % |
| A003625 | Primes congruent to {3, 5, 6} mod 7 | primes | 23.7 % |
| A003626 | Inert rational primes in Q(sqrt(-5)) | primes | 27.8 % |
| A003628 | Primes congruent to {5, 7} mod 8 | primes | 28.0 % |
| A003629 | Primes p == +- 3 (mod 8), or, primes p such that 2 is not a square mod p | primes | 28.0 % |
| A003631 | Primes congruent to 2 or 3 modulo 5 | primes | 32.2 % |
| A003635 | Inconsummate numbers in base 10: no number is this multiple of the sum of its digits (in base 10) | digit rule | 18.0 % |
| A003714 | Fibbinary numbers: if n = F(i1) + F(i2) + ... + F(ik) is the Zeckendorf representation of n (i.e., write n in Fibonacci number system) then a(n) = 2^(i1 - 2) + 2^(i2 - 2) + ... + 2^(ik - 2). Also numbers whose binary representation contains no two adjacent 1's | binary rule | 10.4 % |
| A003726 | Numbers with no 3 adjacent 1's in binary expansion | binary rule | 9.9 % |
| A003754 | Numbers with no adjacent 0's in binary expansion | binary rule | 11.6 % |
| A003777 | a(n) = n^3 + n^2 - 1 | polynomial | 100.0 % |
| A003796 | Numbers with no 3 adjacent 0's in binary expansion | binary rule | 10.6 % |
| A003814 | Numbers k such that the continued fraction for sqrt(k) has odd period length | quadratic form | 19.1 % |
| A004006 | a(n) = C(n,1) + C(n,2) + C(n,3), or n*(n^2 + 5)/6 | polynomial | 100.0 % |
| A004126 | a(n) = n*(7*n^2 - 1)/6 | polynomial | 100.0 % |
| A004188 | a(n) = n*(3*n^2 - 1)/2 | polynomial | 100.0 % |
| A004201 | Accept one, reject one, accept two, reject two, .. | block | 9.4 % |
| A004202 | Skip 1, take 1, skip 2, take 2, skip 3, take 3, etc | block | 9.3 % |
| A004207 | a(0) = 1, a(n) = sum of digits of all previous terms | digit rule | 14.2 % |
| A004214 | Positive numbers that are not the sum of three nonzero squares | quadratic form | 23.7 % |
| A004215 | Numbers that are the sum of 4 but no fewer nonzero squares | quadratic form | 23.7 % |
| A004431 | Numbers that are the sum of 2 distinct nonzero squares | quadratic form | 16.0 % |
| A004432 | Numbers that are the sum of 3 distinct nonzero squares | quadratic form | 8.6 % |
| A004433 | Numbers that are the sum of 4 distinct nonzero squares: of form w^2+x^2+y^2+z^2 with 0<w<x<y<z | quadratic form | 9.6 % |
| A004466 | a(n) = n*(5*n^2 - 2)/3 | polynomial | 100.0 % |
| A004467 | a(n) = n*(11*n^2 - 5)/6 | polynomial | 100.0 % |
| A004611 | Divisible only by primes congruent to 1 mod 3 | multiplicative | 32.6 % |
| A004614 | Numbers that are divisible only by primes congruent to 3 mod 4 | multiplicative | 23.6 % |
| A004678 | Primes written in base 4 | digit rule | 27.3 % |
| A004679 | Primes written in base 5 | digit rule | 27.6 % |
| A004680 | Primes written in base 6 | digit rule | 30.7 % |
| A004681 | Primes written in base 7 | digit rule | 23.6 % |
| A004682 | Primes written in base 8 | digit rule | 30.8 % |
| A004683 | Primes written in base 9 | digit rule | 24.6 % |
| A004709 | Cubefree numbers: numbers that are not divisible by any cube > 1 | multiplicative | 10.2 % |
| A004742 | Numbers whose binary expansion does not contain 101 | binary rule | 13.6 % |
| A004743 | Numbers whose binary expansion does not contain 110 | binary rule | 11.4 % |
| A004744 | Numbers whose binary expansion does not contain 011 | binary rule | 11.3 % |
| A004745 | Numbers whose binary expansion does not contain 001 | binary rule | 10.1 % |
| A004746 | Numbers whose binary expansion does not contain 010 | binary rule | 12.1 % |
| A004767 | a(n) = 4*n + 3 | arithmetic progression | 23.2 % |
| A004780 | Binary expansion contains 2 adjacent 1's | binary rule | 9.7 % |
| A004919 | a(n) = floor(n*phi^4), where phi is the golden ratio, A001622 | Beatty | 22.3 % |
| A004920 | a(n) = floor(n*phi^5), where phi is the golden ratio, A001622 | Beatty | 25.8 % |
| A004921 | a(n) = floor(n*phi^6), phi = golden ratio, A001622 | Beatty | 29.2 % |
| A004922 | a(n) = floor(n*phi^7), where phi is the golden ratio, A001622 | Beatty | 32.4 % |
| A004976 | a(n) = floor(n*phi^3), where phi=(1+sqrt(5))/2 | Beatty | 18.9 % |
| A004999 | Sums of two nonnegative cubes | quadratic form | 49.9 % |
| A005097 | (Odd primes - 1)/2 | primes | 22.4 % |
| A005098 | Numbers k such that 4k + 1 is prime | prime values | 22.8 % |
| A005100 | Deficient numbers: numbers k such that sigma(k) < 2k | divisor functions | 7.8 % |
| A005101 | Abundant numbers (sum of divisors of m exceeds 2m) | divisor functions | 14.9 % |
| A005117 | Squarefree numbers: numbers that are not divisible by a square greater than 1 | multiplicative | 10.7 % |
| A005122 | Numbers k such that 8k - 1 is prime | prime values | 22.8 % |
| A005123 | Numbers k such that 8k + 1 is prime | prime values | 22.9 % |
| A005124 | Numbers k such that 8k + 3 is prime | prime values | 15.8 % |
| A005125 | Numbers k such that 8k - 3 is prime | prime values | 17.4 % |
| A005153 | Practical numbers: positive integers m such that every k <= sigma(m) is a sum of distinct divisors of m. Also called panarithmic numbers | divisor functions | 17.5 % |
| A005187 | a(n) = a(floor(n/2)) + n; also denominators in expansion of 1/sqrt(1-x) are 2^a(n); also 2n - number of 1's in binary expansion of 2n | summatory | 12.5 % |
| A005214 | Triangular numbers together with squares (excluding 0) | polynomial | 83.8 % |
| A005228 | Sequence and first differences (A030124) together list all positive numbers exactly once | self-referential | 100.0 % |
| A005236 | Barriers for omega(n): numbers n such that, for all m < n, m + omega(m) <= n | self-referential | 33.1 % |
| A005237 | Numbers k such that k and k+1 have the same number of divisors | divisor functions | 21.9 % |
| A005238 | Numbers k such that k, k+1 and k+2 have the same number of divisors | multiplicative | 36.7 % |
| A005244 | A self-generating sequence: start with 2 and 3, take all products of any 2 previous elements, subtract 1 and adjoin them to the sequence | self-referential | 22.2 % |
| A005277 | Nontotients: even numbers k such that phi(m) = k has no solution | divisor functions | 10.7 % |
| A005279 | Numbers having divisors d, e with d < e < 2*d | divisor functions | 15.2 % |
| A005286 | a(n) = (n + 3)*(n^2 + 6*n + 2)/6 | polynomial | 100.0 % |
| A005349 | Niven (or Harshad, or harshad) numbers: numbers that are divisible by the sum of their digits | digit rule | 20.3 % |
| A005381 | Numbers k such that k and k-1 are composite | complement | 2.5 % |
| A005382 | Primes p such that 2p-1 is also prime | primes | 47.8 % |
| A005383 | Primes p such that (p+1)/2 is prime | primes | 52.2 % |
| A005384 | Sophie Germain primes p: 2p+1 is also prime | primes | 47.3 % |
| A005385 | Safe primes p: (p-1)/2 is also prime | primes | 52.0 % |
| A005408 | The odd numbers: a(n) = 2*n + 1 | forced divisor | 18.0 % |
| A005448 | Centered triangular numbers: a(n) = 3*n*(n-1)/2 + 1 | polynomial | 100.0 % |
| A005449 | Second pentagonal numbers: a(n) = n*(3*n + 1)/2 | polynomial | 100.0 % |
| A005473 | Primes of form k^2 + 4 | primes | 100.0 % |
| A005475 | a(n) = n*(5*n+1)/2 | polynomial | 100.0 % |
| A005476 | a(n) = n*(5*n - 1)/2 | polynomial | 100.0 % |
| A005491 | a(n) = n^3 + 3*n + 1 | polynomial | 100.0 % |
| A005563 | a(n) = n*(n+2) = (n+1)^2 - 1 | polynomial | 100.0 % |
| A005574 | Numbers k such that k^2 + 1 is prime | prime values | 23.9 % |
| A005586 | a(n) = n*(n+4)*(n+5)/6 | polynomial | 100.0 % |
| A005598 | a(n) = 1 + Sum_{i=1..n} (n-i+1)*phi(i) | divisor functions | 100.0 % |
| A005658 | If n appears so do 2n, 3n+2, 6n+3 | self-referential | 13.5 % |
| A005744 | Expansion of x*(1+x-x^2)/((1-x)^4*(1+x)) | polynomial | 100.0 % |
| A005836 | Numbers whose base-3 representation contains no 2 | digit rule | 14.7 % |
| A005843 | The nonnegative even numbers: a(n) = 2n | arithmetic progression | 9.6 % |
| A005846 | Primes of the form k^2 + k + 41 | primes | 100.0 % |
| A005891 | Centered pentagonal numbers: (5n^2+5n+2)/2; crystal ball sequence for 3.3.3.4.4. planar net | polynomial | 100.0 % |
| A005893 | Number of points on surface of tetrahedron; coordination sequence for sodalite net (equals 2*n^2+2 for n > 0) | polynomial | 100.0 % |
| A005894 | Centered tetrahedral numbers | polynomial | 100.0 % |
| A005897 | a(n) = 6*n^2 + 2 for n > 0, a(0)=1 | polynomial | 100.0 % |
| A005898 | Centered cube numbers: n^3 + (n+1)^3 | polynomial | 100.0 % |
| A005899 | Number of points on surface of octahedron; also coordination sequence for cubic lattice: a(0) = 1; for n > 0, a(n) = 4n^2 + 2 | polynomial | 100.0 % |
| A005900 | Octahedral numbers: a(n) = n*(2*n^2 + 1)/3 | polynomial | 100.0 % |
| A005901 | Number of points on surface of cuboctahedron (or icosahedron): a(0) = 1; for n > 0, a(n) = 10n^2 + 2. Also coordination sequence for f.c.c. or A_3 or D_3 lattice | polynomial | 100.0 % |
| A005902 | Centered icosahedral (or cuboctahedral) numbers, also crystal ball sequence for f.c.c. lattice | polynomial | 100.0 % |
| A005906 | Truncated tetrahedral numbers: a(n) = (1/6)*(n+1)*(23*n^2 + 19*n + 6) | polynomial | 100.0 % |
| A005914 | Number of points on surface of hexagonal prism: 12*n^2 + 2 for n > 0 (coordination sequence for W(2)) | polynomial | 100.0 % |
| A005915 | Hexagonal prism numbers: a(n) = (n + 1)*(3*n^2 + 3*n + 1) | polynomial | 100.0 % |
| A005917 | Rhombic dodecahedral numbers: a(n) = n^4 - (n - 1)^4 | polynomial | 100.0 % |
| A005920 | Tricapped prism numbers | polynomial | 100.0 % |
| A005993 | Expansion of (1+x^2)/((1-x)^2*(1-x^2)^2) | polynomial | 100.0 % |
| A006000 | a(n) = (n+1)*(n^2+n+2)/2 | polynomial | 100.0 % |
| A006002 | a(n) = n*(n+1)^2/2 | polynomial | 100.0 % |
| A006003 | a(n) = n*(n^2 + 1)/2 | polynomial | 100.0 % |
| A006004 | a(n) = C(n+2,3) + C(n,3) + C(n-1,3) | polynomial | 100.0 % |
| A006046 | Total number of odd entries in first n rows of Pascal's triangle: a(0) = 0, a(1) = 1, a(2k) = 3*a(k), a(2k+1) = 2*a(k) + a(k+1). a(n) = Sum_{i=0..n-1} 2^wt(i) | summatory | 55.2 % |
| A006049 | Numbers k such that k and k+1 have the same number of distinct prime divisors | multiplicative | 16.7 % |
| A006073 | Numbers k such that k, k+1 and k+2 all have the same number of distinct prime divisors | multiplicative | 22.0 % |
| A006093 | a(n) = prime(n) - 1 | primes | 22.4 % |
| A006094 | Products of 2 successive primes | primes | 100.0 % |
| A006218 | a(n) = Sum_{k=1..n} floor(n/k); also Sum_{k=1..n} d(k), where d = number of divisors (A000005); also number of solutions to x*y = z with 1 <= x,y,z <= n | summatory | 23.4 % |
| A006222 | a(n) = 11*n^2 + 11*n + 3 | polynomial | 100.0 % |
| A006254 | Numbers k such that 2k-1 is prime | primes | 22.3 % |
| A006285 | Odd numbers not of form p + 2^k (de Polignac numbers) | primes | 29.7 % |
| A006331 | a(n) = n*(n+1)*(2*n+1)/3 | polynomial | 100.0 % |
| A006364 | Numbers k with an even number of 1's in binary, ignoring last bit | binary rule | 13.1 % |
| A006378 | Prime self (or Colombian) numbers: primes not expressible as the sum of an integer and its digit sum | primes | 41.7 % |
| A006446 | Numbers k such that floor(sqrt(k)) divides k | block | 70.0 % |
| A006450 | Prime-indexed primes: primes with prime subscripts | primes | 43.3 % |
| A006489 | Numbers k such that k-6, k, and k+6 are primes | primes | 60.5 % |
| A006503 | a(n) = n*(n+1)*(n+8)/6 | polynomial | 100.0 % |
| A006507 | a(n+1) = a(n) + sum of digits of a(n), with a(1)=7 | digit rule | 14.2 % |
| A006512 | Greater of twin primes | primes | 46.9 % |
| A006527 | a(n) = (n^3 + 2*n)/3 | polynomial | 100.0 % |
| A006532 | Numbers whose sum of divisors is a square | divisor functions | 45.4 % |
| A006562 | Balanced primes (of order one): primes which are the average of the previous prime and the following prime | primes | 52.4 % |
| A006564 | Icosahedral numbers: a(n) = n*(5*n^2 - 5*n + 2)/2 | polynomial | 100.0 % |
| A006566 | Dodecahedral numbers: a(n) = n*(3*n - 1)*(3*n - 2)/2 | polynomial | 100.0 % |
| A006567 | Emirps (primes whose reversal is a different prime) | primes | 31.5 % |
| A006597 | a(n) = n^2*(5*n-3)/2 | polynomial | 100.0 % |
| A006753 | Smith (or joke) numbers: composite numbers k such that sum of digits of k = sum of digits of prime factors of k (counted with multiplicity) | digit rule | 29.2 % |
| A006881 | Squarefree semiprimes: Numbers that are the product of two distinct primes | multiplicative | 15.7 % |
| A006918 | a(n) = binomial(n+3, 3)/4 for odd n, n*(n+2)*(n+4)/24 for even n | polynomial | 100.0 % |
| A006995 | Binary palindromes: numbers whose binary expansion is palindromic | binary rule | 88.4 % |
| A007064 | Numbers not of form "nearest integer to n*tau", tau = (1+sqrt(5))/2 | Beatty | 15.4 % |
| A007066 | a(n) = 1 + ceiling((n-1)*phi^2), phi = (1+sqrt(5))/2 | Beatty | 15.5 % |
| A007088 | The binary numbers (or binary words, or binary vectors, or binary expansion of n): numbers written in base 2 | binary rule | 12.7 % |
| A007089 | Numbers in base 3 | digit rule | 10.7 % |
| A007090 | Numbers in base 4 | digit rule | 12.7 % |
| A007091 | Numbers in base 5 | digit rule | 11.1 % |
| A007092 | Numbers in base 6 | digit rule | 10.6 % |
| A007093 | Numbers in base 7 | digit rule | 11.8 % |
| A007094 | Numbers in base 8 | digit rule | 10.0 % |
| A007095 | Numbers in base 9 | digit rule | 9.2 % |
| A007202 | Crystal ball sequence for hexagonal close-packing | polynomial | 100.0 % |
| A007304 | Sphenic numbers: products of 3 distinct primes | multiplicative | 17.0 % |
| A007310 | Numbers congruent to 1 or 5 mod 6 | forced divisor | 9.6 % |
| A007378 | a(n), for n >= 2, is smallest positive integer which is consistent with sequence being monotonically increasing and satisfying a(a(n)) = 2n | self-referential | 9.5 % |
| A007412 | The noncubes: a(n) = n + floor((n + floor(n^(1/3)))^(1/3)) | complement | 9.6 % |
| A007491 | Smallest prime > n^2 | primes | 100.0 % |
| A007494 | Numbers that are congruent to 0 or 2 mod 3 | residue class | 17.5 % |
| A007500 | Primes whose reversal in base 10 is also prime (called "palindromic primes" by David Wells, although that name usually refers to A002385). Also called reversible primes | primes | 31.5 % |
| A007504 | Sum of the first n primes | summatory | 100.0 % |
| A007510 | Single (or isolated or non-twin) primes: Primes p such that neither p-2 nor p+2 is prime | primes | 26.1 % |
| A007519 | Primes of form 8n+1, that is, primes congruent to 1 mod 8 | primes | 33.3 % |
| A007520 | Primes == 3 (mod 8) | primes | 33.3 % |
| A007521 | Primes of the form 8k + 5 | primes | 33.3 % |
| A007522 | Primes of the form 8*k+7, that is, primes congruent to -1 mod 8 | primes | 33.1 % |
| A007528 | Primes of the form 6k-1 | primes | 35.2 % |
| A007529 | Prime triples: p; p+2 or p+4; p+6 all prime | primes | 49.1 % |
| A007533 | a(n) = (5*n + 1)^2 + 4*n + 1 | polynomial | 100.0 % |
| A007584 | 9-gonal (or enneagonal) pyramidal numbers: a(n) = n*(n+1)*(7*n-4)/6 | polynomial | 100.0 % |
| A007585 | 10-gonal (or decagonal) pyramidal numbers: a(n) = n*(n + 1)*(8*n - 5)/6 | polynomial | 100.0 % |
| A007586 | 11-gonal (or hendecagonal) pyramidal numbers: a(n) = n*(n+1)*(3*n-2)/2 | polynomial | 100.0 % |
| A007587 | 12-gonal (or dodecagonal) pyramidal numbers: a(n) = n*(n+1)*(10*n-7)/6 | polynomial | 100.0 % |
| A007588 | Stella octangula numbers: a(n) = n*(2*n^2 - 1) | polynomial | 100.0 % |
| A007590 | a(n) = floor(n^2/2) | polynomial | 100.0 % |
| A007591 | Numbers k such that k^2 + 4 is prime | prime values | 33.3 % |
| A007606 | Take 1, skip 2, take 3, etc | block | 9.3 % |
| A007612 | a(n+1) = a(n) + digital root (A010888) of a(n) | digit rule | 0.0 % |
| A007617 | Values not in range of Euler phi function | divisor functions | 11.1 % |
| A007618 | a(n) = a(n-1) + sum of digits of a(n-1), a(1) = 5 | digit rule | 14.2 % |
| A007635 | Primes of form n^2 + n + 17 | primes | 100.0 % |
| A007637 | Primes of form 3*k^2 - 3*k + 23 | primes | 100.0 % |
| A007639 | Primes of form 2n^2 - 2n + 19 | primes | 100.0 % |
| A007641 | Primes of the form 2*k^2 + 29 | primes | 100.0 % |
| A007674 | Numbers m such that m and m+1 are squarefree | multiplicative | 14.6 % |
| A007675 | Numbers m such that m, m+1 and m+2 are squarefree | multiplicative | 28.7 % |
| A007692 | Numbers that are the sum of 2 nonzero squares in 2 or more ways | quadratic form | 20.0 % |
| A007693 | Primes p such that 6*p + 1 is also prime | primes | 37.1 % |
| A007700 | Numbers n such that n, 2n+1, and 4n+3 all prime | primes | 67.4 % |
| A007742 | a(n) = n*(4*n+1) | polynomial | 100.0 % |
| A007770 | Happy numbers: numbers whose trajectory under iteration of sum of squares of digits map (see A003132) includes 1 | digit rule | 19.7 % |
| A007774 | Numbers that are divisible by exactly 2 different primes; numbers n with omega(n) = A001221(n) = 2 | multiplicative | 13.2 % |
| A007775 | Numbers not divisible by 2, 3 or 5 | forced divisor | 13.6 % |
| A007821 | Primes p such that pi(p) is not prime | primes | 23.8 % |
| A007904 | Crystal ball sequence for diamond | polynomial | 100.0 % |
| A007916 | Numbers that are not perfect powers | powers | 9.7 % |
| A007921 | Numbers that are not the difference of two primes | primes | 18.6 % |
| A007928 | Numbers containing an even digit | digit rule | 9.3 % |
| A007931 | Numbers that contain only 1's and 2's. Nonempty binary strings of length n in lexicographic order | digit rule | 11.1 % |
| A007932 | Numbers that contain only 1's, 2's and 3's | digit rule | 10.7 % |
| A007950 | Binary sieve: delete every 2nd number, then every 4th, 8th, etc | sieve | 21.2 % |
| A007951 | Ternary sieve: delete every 3rd number, then every 9th, 27th, etc | sieve | 3.5 % |
| A007957 | Numbers that contain an odd digit | digit rule | 9.9 % |
| A008364 | 11-rough numbers: not divisible by 2, 3, 5 or 7 | forced divisor | 14.7 % |
| A008365 | 13-rough numbers: positive integers that have no prime factors less than 13 | forced divisor | 15.5 % |
| A008366 | Smallest prime factor is >= 17 | forced divisor | 16.2 % |
| A008412 | Coordination sequence for 4-dimensional cubic lattice (points on surface of 4-dimensional cross-polytope) | polynomial | 100.0 % |
| A008577 | Crystal ball sequence for planar net 4.8.8 | polynomial | 100.0 % |
| A008580 | Crystal ball sequence for planar net 3.6.3.6 | polynomial | 100.0 % |
| A008585 | a(n) = 3*n | forced divisor | 9.6 % |
| A008586 | Multiples of 4 | arithmetic progression | 9.6 % |
| A008587 | Multiples of 5: a(n) = 5 * n | arithmetic progression | 9.6 % |
| A008588 | Nonnegative multiples of 6 | arithmetic progression | 9.6 % |
| A008589 | Multiples of 7 | arithmetic progression | 9.6 % |
| A008590 | Multiples of 8 | residue class | 9.6 % |
| A008593 | Multiples of 11 | residue class | 9.6 % |
| A008594 | Multiples of 12 | residue class | 9.6 % |
| A008595 | Multiples of 13 | residue class | 9.6 % |
| A008596 | Multiples of 14 | residue class | 9.6 % |
| A008597 | Multiples of 15 | residue class | 9.6 % |
| A008598 | Multiples of 16 | residue class | 9.6 % |
| A008599 | Multiples of 17 | residue class | 9.6 % |
| A008600 | Multiples of 18 | residue class | 9.6 % |
| A008601 | Multiples of 19 | residue class | 9.6 % |
| A008602 | Multiples of 20 | residue class | 9.6 % |
| A008603 | Multiples of 21 | residue class | 9.6 % |
| A008604 | Multiples of 22 | residue class | 9.6 % |
| A008605 | Multiples of 23 | residue class | 9.7 % |
| A008606 | Multiples of 24 | residue class | 9.6 % |
| A008607 | Multiples of 25 | residue class | 9.6 % |
| A008804 | Expansion of 1/((1-x)^2*(1-x^2)*(1-x^4)) | polynomial | 100.0 % |
| A008810 | a(n) = ceiling(n^2/3) | polynomial | 100.0 % |
| A008846 | Hypotenuses of primitive Pythagorean triangles | multiplicative | 23.8 % |
| A008851 | Congruent to 0 or 1 mod 5 | residue class | 17.6 % |
| A008854 | Numbers that are congruent to {0, 1, 4} mod 5 | residue class | 14.9 % |
| A008864 | a(n) = prime(n) + 1 | primes | 22.3 % |
| A008865 | a(n) = n^2 - 2 | polynomial | 100.0 % |
| A008917 | Numbers that are the sum of 3 positive cubes in more than one way | quadratic form | 34.5 % |
| A009112 | Areas of Pythagorean triangles: numbers which can be the area of a right triangle with integer sides | quadratic form | 48.3 % |
| A009177 | Numbers that are the hypotenuses of more than one Pythagorean triangle | quadratic form | 16.5 % |
| A009440 | a(n) is the concatenation of n and 6n | digit rule | 100.0 % |
| A009441 | a(n) is the concatenation of n and 7n | digit rule | 100.0 % |
| A009470 | a(n) is the concatenation of n and 8n | digit rule | 100.0 % |
| A009474 | a(n) is the concatenation of n and 9n | digit rule | 100.0 % |
| A009994 | Numbers with digits in nondecreasing order | digit rule | 19.8 % |
| A009996 | Numbers with digits in nonincreasing order | digit rule | 17.2 % |
| A010061 | Binary self or Colombian numbers: numbers that cannot be expressed as the sum of distinct terms of the form 2^k+1 (k>=0), or equivalently, numbers not of form m + sum of binary digits of m | binary rule | 17.1 % |
| A010062 | a(0)=1; thereafter a(n+1) = a(n) + number of 1's in binary representation of a(n) | digit rule | 23.9 % |
| A010063 | a(n+1) = a(n) + sum of digits in base 3 representation of a(n), with a(0) = 1 | digit rule | 22.3 % |
| A010064 | Base 4 self or Colombian numbers (not of form k + sum of base 4 digits of k) | digit rule | 19.2 % |
| A010065 | a(n+1) = a(n) + sum of digits in base 4 representation of a(n), with a(0) = 1 | digit rule | 18.3 % |
| A010066 | a(n+1) = a(n) + sum of digits in base 5 representation of a(n) | digit rule | 19.9 % |
| A010067 | Base 6 self or Colombian numbers (not of form k + sum of base 6 digits of k) | digit rule | 20.8 % |
| A010068 | a(n+1) = a(n) + sum of digits in base 6 representation of a(n) | digit rule | 16.9 % |
| A010069 | a(n+1) = a(n) + sum of digits in base 7 representation of a(n) | digit rule | 15.9 % |
| A010070 | Base 8 self or Colombian numbers (not of form k + sum of base 8 digits of k) | digit rule | 22.9 % |
| A010071 | a(n+1) = a(n) + sum of digits in base 8 representation of a(n) | digit rule | 15.9 % |
| A010072 | a(n+1) = a(n) + sum of digits in base 9 representation of a(n) | digit rule | 17.8 % |
| A011199 | a(n) = (n+1)*(2*n+1)*(3*n+1) | polynomial | 100.0 % |
| A011379 | a(n) = n^2*(n+1) | polynomial | 100.0 % |
| A011531 | Numbers that contain a digit 1 in their decimal representation | digit rule | 11.1 % |
| A011532 | Numbers that contain a 2 | digit rule | 11.4 % |
| A011533 | Numbers that contain a 3 | digit rule | 12.7 % |
| A011534 | Numbers that contain a 4 | digit rule | 11.5 % |
| A011535 | Numbers that contain a 5 | digit rule | 10.8 % |
| A011536 | Numbers that contain a 6 | digit rule | 12.0 % |
| A011537 | Numbers that contain at least one 7 | digit rule | 13.6 % |
| A011538 | Numbers that contain an 8 | digit rule | 11.2 % |
| A011539 | "9ish numbers": decimal representation contains at least one nine | digit rule | 13.6 % |
| A011540 | Numbers that contain a digit 0 | digit rule | 8.8 % |
| A013656 | a(n) = n*(9*n-2) | polynomial | 100.0 % |
| A013916 | Numbers k such that the sum of the first k primes is prime | primes | 24.1 % |
| A013917 | a(n) is prime and sum of all primes <= a(n) is prime | primes | 47.8 % |
| A013929 | Numbers that are not squarefree. Numbers that are divisible by a square greater than 1. The complement of A005117 | multiplicative | 13.0 % |
| A013939 | Partial sums of sequence A001221 (number of distinct primes dividing n) | summatory | 15.3 % |
| A014076 | Odd nonprimes | complement | 21.0 % |
| A014091 | Numbers that are the sum of 2 primes | primes | 22.6 % |
| A014092 | Numbers that are not the sum of 2 primes | primes | 4.2 % |
| A014105 | Second hexagonal numbers: a(n) = n*(2*n + 1) | polynomial | 100.0 % |
| A014106 | a(n) = n*(2*n + 3) | polynomial | 100.0 % |
| A014132 | Complement of triangular numbers (A000217); also array T(n,k) = ((n+k)^2 + n-k)/2, n, k > 0, read by antidiagonals | complement | 9.5 % |
| A014190 | Palindromes in base 3 (written in base 10) | digit rule | 84.2 % |
| A014192 | Palindromes in base 4 (written in base 10) | digit rule | 83.2 % |
| A014206 | a(n) = n^2 + n + 2 | polynomial | 100.0 % |
| A014261 | Numbers that contain odd digits only | digit rule | 17.4 % |
| A014263 | Numbers that contain even digits only | digit rule | 11.1 % |
| A014312 | Numbers with exactly 4 ones in binary expansion | binary rule | 12.9 % |
| A014313 | Numbers with exactly 5 ones in binary expansion | binary rule | 8.9 % |
| A014439 | Differences between two positive cubes in exactly 1 way | powers | 44.3 % |
| A014567 | Numbers k such that k and sigma(k) are relatively prime, where sigma(k) = sum of divisors of k (A000203) | multiplicative | 13.5 % |
| A014574 | Average of twin prime pairs | primes | 31.8 % |
| A014601 | Numbers congruent to 0 or 3 mod 4 | residue class | 12.3 % |
| A014612 | Numbers that are the product of exactly three (not necessarily distinct) primes | multiplicative | 15.8 % |
| A014613 | Numbers that are products of 4 primes | multiplicative | 16.9 % |
| A014614 | Numbers that are products of 5 primes (or 5-almost primes, a generalization of semiprimes) | multiplicative | 18.0 % |
| A014634 | a(n) = (2*n+1)*(4*n+1) | polynomial | 100.0 % |
| A014635 | a(n) = 2*n*(4*n - 1) | polynomial | 100.0 % |
| A014657 | Numbers m that divide 2^k + 1 for some nonnegative k | multiplicative | 23.6 % |
| A014661 | Numbers that do not divide 2^k + 1 for any k>0 | multiplicative | 11.2 % |
| A014688 | a(n) = n-th prime + n | primes | 25.3 % |
| A014752 | Primes of the form x^2 + 27y^2 | quadratic form | 42.3 % |
| A015237 | a(n) = (2*n - 1)*n^2 | polynomial | 100.0 % |
| A015614 | a(n) = -1 + Sum_{i=1..n} phi(i) | summatory | 93.3 % |
| A015911 | Numbers k such that 2^k mod k is odd | powers | 24.4 % |
| A015976 | One iteration of Reverse and Add is needed to reach a palindrome | digit rule | 10.7 % |
| A015977 | Two iterations of Reverse and Add are needed to reach a palindrome | digit rule | 13.0 % |
| A015979 | Three iterations of Reverse and Add are needed to reach a palindrome | digit rule | 16.2 % |
| A015980 | Four iterations of Reverse and Add are needed to reach a palindrome | digit rule | 20.4 % |
| A015982 | Five iterations of Reverse and Add are needed to reach a palindrome | digit rule | 21.0 % |
| A015984 | Six iterations of Reverse and Add are needed to reach a palindrome | digit rule | 23.8 % |
| A016038 | Strictly non-palindromic numbers: n is not palindromic in any base b with 2 <= b <= n-2 | digit rule | 43.1 % |
| A016052 | a(1) = 3; for n >= 1, a(n+1) = a(n) + sum of its digits | digit rule | 14.7 % |
| A016061 | a(n) = n*(n+1)*(4*n+5)/6 | polynomial | 100.0 % |
| A016096 | a(n+1) = a(n) + sum of its digits, with a(1) = 9 | digit rule | 17.4 % |
| A016105 | Blum integers: numbers of the form p * q where p and q are distinct primes congruent to 3 (mod 4) | multiplicative | 29.9 % |
| A016754 | Odd squares: a(n) = (2n+1)^2. Also centered octagonal numbers | polynomial | 100.0 % |
| A016766 | a(n) = (3*n)^2 | polynomial | 100.0 % |
| A016777 | a(n) = 3*n + 1 | arithmetic progression | 19.9 % |
| A016778 | a(n) = (3*n+1)^2 | polynomial | 100.0 % |
| A016789 | a(n) = 3*n + 2 | arithmetic progression | 19.9 % |
| A016790 | a(n) = (3n+2)^2 | polynomial | 100.0 % |
| A016802 | a(n) = (4*n)^2 | polynomial | 100.0 % |
| A016813 | a(n) = 4*n + 1 | arithmetic progression | 23.2 % |
| A016814 | a(n) = (4*n + 1)^2 | polynomial | 100.0 % |
| A016825 | Positive integers congruent to 2 (mod 4): a(n) = 4*n+2, for n >= 0 | residue class | 18.0 % |
| A016826 | a(n) = (4n + 2)^2 | polynomial | 100.0 % |
| A016838 | a(n) = (4*n + 3)^2 | polynomial | 100.0 % |
| A016850 | a(n) = (5*n)^2 | polynomial | 100.0 % |
| A016862 | a(n) = (5*n + 1)^2 | polynomial | 100.0 % |
| A016874 | a(n) = (5*n + 2)^2 | polynomial | 100.0 % |
| A016885 | a(n) = 5*n + 3 | arithmetic progression | 22.6 % |
| A016886 | a(n) = (5*n + 3)^2 | polynomial | 100.0 % |
| A016898 | a(n) = (5*n + 4)^2 | polynomial | 100.0 % |
| A016910 | a(n) = (6*n)^2 | polynomial | 100.0 % |
| A016922 | a(n) = (6*n + 1)^2 | polynomial | 100.0 % |
| A016934 | a(n) = (6*n + 2)^2 | polynomial | 100.0 % |
| A016946 | a(n) = (6*n+3)^2 | polynomial | 100.0 % |
| A016958 | a(n) = (6*n + 4)^2 | polynomial | 100.0 % |
| A016970 | a(n) = (6*n + 5)^2 | polynomial | 100.0 % |
| A016982 | a(n) = (7*n)^2 | polynomial | 100.0 % |
| A016994 | a(n) = (7*n + 1)^2 | polynomial | 100.0 % |
| A017006 | a(n) = (7*n+2)^2 | polynomial | 100.0 % |
| A017018 | a(n) = (7*n + 3)^2 | polynomial | 100.0 % |
| A017030 | a(n) = (7*n + 4)^2 | polynomial | 100.0 % |
| A017042 | a(n) = (7*n + 5)^2 | polynomial | 100.0 % |
| A017054 | a(n) = (7*n + 6)^2 | polynomial | 100.0 % |
| A017066 | a(n) = (8*n)^2 | polynomial | 100.0 % |
| A017078 | a(n) = (8*n + 1)^2 | polynomial | 100.0 % |
| A017090 | a(n) = (8*n + 2)^2 | polynomial | 100.0 % |
| A017102 | a(n) = (8n + 3)^2 | polynomial | 100.0 % |
| A017114 | a(n) = (8*n + 4)^2 | polynomial | 100.0 % |
| A017126 | a(n) = (8*n + 5)^2 | polynomial | 100.0 % |
| A017138 | a(n) = (8*n+6)^2 | polynomial | 100.0 % |
| A017150 | a(n) = (8*n + 7)^2 | polynomial | 100.0 % |
| A017162 | a(n) = (9*n)^2 | polynomial | 100.0 % |
| A017174 | a(n) = (9*n + 1)^2 | polynomial | 100.0 % |
| A017186 | a(n) = (9*n + 2)^2 | polynomial | 100.0 % |
| A017198 | a(n) = (9*n + 3)^2 | polynomial | 100.0 % |
| A017210 | a(n) = (9*n + 4)^2 | polynomial | 100.0 % |
| A017222 | a(n) = (9*n + 5)^2 | polynomial | 100.0 % |
| A017234 | a(n) = (9*n + 6)^2 | polynomial | 100.0 % |
| A017246 | a(n) = (9*n + 7)^2 | polynomial | 100.0 % |
| A017258 | a(n) = (9*n + 8)^2 | polynomial | 100.0 % |
| A017270 | a(n) = (10*n)^2 | polynomial | 100.0 % |
| A017282 | a(n) = (10*n + 1)^2 | polynomial | 100.0 % |
| A017294 | a(n) = (10*n + 2)^2 | polynomial | 100.0 % |
| A017306 | a(n) = (10*n + 3)^2 | polynomial | 100.0 % |
| A017318 | a(n) = (10*n + 4)^2 | polynomial | 100.0 % |
| A017330 | a(n) = (10*n + 5)^2 | polynomial | 100.0 % |
| A017342 | a(n) = (10*n + 6)^2 | polynomial | 100.0 % |
| A017354 | a(n) = (10*n + 7)^2 | polynomial | 100.0 % |
| A017366 | a(n) = (10*n + 8)^2 | polynomial | 100.0 % |
| A017378 | a(n) = (10*n + 9)^2 | polynomial | 100.0 % |
| A017390 | a(n) = (11*n)^2 | polynomial | 100.0 % |
| A017402 | a(n) = (11*n+1)^2 | polynomial | 100.0 % |
| A017414 | a(n) = (11*n + 2)^2 | polynomial | 100.0 % |
| A017426 | a(n) = (11*n + 3)^2 | polynomial | 100.0 % |
| A017438 | a(n) = (11*n + 4)^2 | polynomial | 100.0 % |
| A017450 | a(n) = (11*n + 5)^2 | polynomial | 100.0 % |
| A017462 | a(n) = (11*n + 6)^2 | polynomial | 100.0 % |
| A017474 | a(n) = (11*n + 7)^2 | polynomial | 100.0 % |
| A017486 | a(n) = (11*n + 8)^2 | polynomial | 100.0 % |
| A017498 | a(n) = (11*n + 9)^2 | polynomial | 100.0 % |
| A017510 | a(n) = (11*n + 10)^2 | polynomial | 100.0 % |
| A017522 | a(n) = (12*n)^2 | polynomial | 100.0 % |
| A017534 | a(n) = (12*n + 1)^2 | polynomial | 100.0 % |
| A017546 | a(n) = (12*n + 2)^2 | polynomial | 100.0 % |
| A017558 | a(n) = (12*n + 3)^2 | polynomial | 100.0 % |
| A017570 | a(n) = (12*n + 4)^2 | polynomial | 100.0 % |
| A017582 | a(n) = (12*n + 5)^2 | polynomial | 100.0 % |
| A017594 | a(n) = (12*n + 6)^2 | polynomial | 100.0 % |
| A017606 | a(n) = (12*n + 7)^2 | polynomial | 100.0 % |
| A017618 | a(n) = (12*n + 8)^2 | polynomial | 100.0 % |
| A017630 | a(n) = (12*n + 9)^2 | polynomial | 100.0 % |
| A017642 | a(n) = (12*n+10)^2 | polynomial | 100.0 % |
| A017654 | a(n) = (12*n + 11)^2 | polynomial | 100.0 % |
| A018805 | Number of elements in the set {(x,y): 1 <= x,y <= n, gcd(x,y)=1} | summatory | 98.0 % |
| A018825 | Numbers that are not the sum of 2 nonzero squares | complement | 13.5 % |
| A019298 | Number of balls in pyramid with base either a regular hexagon or a hexagon with alternate sides differing by 1 (balls in hexagonal pyramid of height n taken from hexagonal close-packing) | polynomial | 100.0 % |
| A019506 | Hoax numbers: composite numbers whose digit-sum equals the sum of the digit-sums of its distinct prime factors | digit rule | 27.5 % |
| A019546 | Primes whose digits are primes; primes having only {2, 3, 5, 7} as digits | primes | 34.2 % |
| A019550 | a(n) is the concatenation of n and 2n | digit rule | 100.0 % |
| A019551 | a(n) is the concatenation of n and 3n | digit rule | 100.0 % |
| A019552 | a(n) is the concatenation of n and 4n | digit rule | 100.0 % |
| A019553 | a(n) is the concatenation of n and 5n | digit rule | 100.0 % |
| A020668 | Numbers of the form x^2 + 4*y^2 | quadratic form | 20.2 % |
| A020669 | Numbers of form x^2 + 5 y^2 | quadratic form | 22.9 % |
| A020670 | Numbers of form x^2 + 7y^2 | quadratic form | 17.3 % |
| A020671 | Numbers of form x^2 + 8 y^2 | quadratic form | 20.4 % |
| A020672 | Numbers of form x^2 + 9 y^2 | quadratic form | 24.5 % |
| A020673 | Numbers of form x^2 + 10 y^2 | quadratic form | 21.5 % |
| A020674 | Numbers of the form 2*x^2 + 5*y^2 | quadratic form | 20.7 % |
| A020675 | Numbers of form 2 x^2 + 7 y^2 | quadratic form | 17.6 % |
| A020676 | Numbers of form 2 x^2 + 9 y^2 | quadratic form | 23.1 % |
| A020677 | Numbers of form 3*x^2 + 4*y^2 | quadratic form | 25.3 % |
| A020678 | Numbers of form 3 x^2 + 5 y^2 | quadratic form | 30.5 % |
| A020679 | Numbers of form 3*x^2 + 7*y^2 | quadratic form | 24.0 % |
| A020680 | Numbers of form 3 x^2 + 8 y^2 | quadratic form | 26.5 % |
| A020681 | Numbers of form 3 x^2 + 10 y^2 | quadratic form | 28.7 % |
| A020682 | Numbers of form 4 x^2 + 5 y^2 | quadratic form | 27.7 % |
| A020683 | Numbers of form 4 x^2 + 7 y^2 | quadratic form | 17.9 % |
| A020684 | Numbers of form 4 x^2 + 9 y^2 | quadratic form | 29.9 % |
| A020685 | Numbers of form 5 x^2 + 6 y^2 | quadratic form | 28.8 % |
| A020686 | Numbers of form 5 x^2 + 7 y^2 | quadratic form | 25.8 % |
| A020687 | Numbers of form 5 x^2 + 8 y^2 | quadratic form | 26.9 % |
| A020688 | Numbers of form 5 x^2 + 9 y^2 | quadratic form | 31.7 % |
| A020689 | Numbers of form 6 x^2 + 7 y^2 | quadratic form | 23.2 % |
| A020690 | Numbers of form 7 x^2 + 8 y^2 | quadratic form | 22.7 % |
| A020691 | Numbers of form 7 x^2 + 9 y^2 | quadratic form | 27.3 % |
| A020692 | Numbers of form 7 x^2 + 10 y^2 | quadratic form | 22.6 % |
| A020693 | Numbers of the form 8*x^2 + 9*y^2 | quadratic form | 28.7 % |
| A020694 | Numbers of form 9 x^2 + 10 y^2 | quadratic form | 32.5 % |
| A020756 | Numbers that are the sum of two triangular numbers | quadratic form | 14.8 % |
| A020757 | Numbers that are not the sum of two triangular numbers | quadratic form | 12.3 % |
| A020893 | Squarefree sums of two squares; or squarefree numbers with no prime factors of the form 4k+3 | quadratic form | 17.3 % |
| A020899 | Numbers k with an odd number of terms in their Zeckendorf representation (write k as a sum of non-consecutive distinct Fibonacci numbers) | digit rule | 13.0 % |
| A022004 | Initial members of prime triples (p, p+2, p+6) | primes | 63.4 % |
| A022005 | Initial members of prime triples (p, p+4, p+6) | primes | 66.2 % |
| A022155 | Values of n at which Golay-Rudin-Shapiro sequence A020985 is negative | binary rule | 11.5 % |
| A022264 | a(n) = n*(7*n - 1)/2 | polynomial | 100.0 % |
| A022265 | a(n) = n*(7*n + 1)/2 | polynomial | 100.0 % |
| A022266 | a(n) = n*(9*n - 1)/2 | polynomial | 100.0 % |
| A022267 | a(n) = n*(9*n + 1)/2 | polynomial | 100.0 % |
| A022268 | a(n) = n*(11*n - 1)/2 | polynomial | 100.0 % |
| A022269 | a(n) = n*(11*n+1)/2 | polynomial | 100.0 % |
| A022270 | a(n) = n*(13*n - 1)/2 | polynomial | 100.0 % |
| A022271 | a(n) = n*(13*n + 1)/2 | polynomial | 100.0 % |
| A022272 | a(n) = n*(15*n - 1)/2 | polynomial | 100.0 % |
| A022273 | a(n) = n*(15*n + 1)/2 | polynomial | 100.0 % |
| A022274 | a(n) = n*(17*n - 1)/2 | polynomial | 100.0 % |
| A022275 | a(n) = n*(17*n + 1)/2 | polynomial | 100.0 % |
| A022276 | a(n) = n*(19*n - 1)/2 | polynomial | 100.0 % |
| A022277 | a(n) = n*(19*n + 1)/2 | polynomial | 100.0 % |
| A022278 | a(n) = n*(21*n-1)/2 | polynomial | 100.0 % |
| A022279 | a(n) = n*(21*n + 1)/2 | polynomial | 100.0 % |
| A022280 | a(n) = n*(23*n - 1)/2 | polynomial | 100.0 % |
| A022281 | a(n) = n*(23*n + 1)/2 | polynomial | 100.0 % |
| A022282 | a(n) = n*(25*n - 1)/2 | polynomial | 100.0 % |
| A022283 | a(n) = n*(25*n + 1)/2 | polynomial | 100.0 % |
| A022284 | a(n) = n*(27*n - 1)/2 | polynomial | 100.0 % |
| A022285 | a(n) = n*(27*n + 1)/2 | polynomial | 100.0 % |
| A022286 | a(n) = n*(29*n - 1)/2 | polynomial | 100.0 % |
| A022287 | a(n) = n*(29*n + 1)/2 | polynomial | 100.0 % |
| A022288 | a(n) = n*(31*n-1)/2 | polynomial | 100.0 % |
| A022289 | a(n) = n*(31*n + 1)/2 | polynomial | 100.0 % |
| A022342 | Integers with "even" Zeckendorf expansions (do not end with ... + F_2 = ... + 1) (the Fibonacci-even numbers); also, apart from first term, a(n) = Fibonacci successor to n-1 | Beatty | 12.3 % |
| A022449 | c(p(n)) where p(k) is k-th prime including p(1)=1 and c(k) is k-th composite number | complement | 24.6 % |
| A022544 | Numbers that are not the sum of 2 squares | quadratic form | 13.4 % |
| A022549 | Sum of a square and a nonnegative cube | powers | 24.8 % |
| A022559 | Sum of exponents in prime-power factorization of n! | summatory | 16.6 % |
| A022797 | a(n) = n-th prime + n-th nonprime | primes | 26.1 % |
| A022838 | Beatty sequence for sqrt(3); complement of A054406 | Beatty | 12.7 % |
| A022839 | Beatty sequence for sqrt(5) | Beatty | 14.4 % |
| A022840 | Beatty sequence for sqrt(6) | Beatty | 15.1 % |
| A022841 | Beatty sequence for sqrt(7) | Beatty | 15.6 % |
| A022842 | Beatty sequence for sqrt(8) | Beatty | 16.0 % |
| A022843 | Beatty sequence for e: a(n) = floor(n*e) | Beatty | 15.7 % |
| A022844 | a(n) = floor(n*Pi) | Beatty | 16.8 % |
| A022846 | Nearest integer to n*sqrt(2) | Beatty | 11.3 % |
| A022847 | Integer nearest n*sqrt(3) | Beatty | 12.7 % |
| A022848 | Integer nearest nx, where x = sqrt(5) | Beatty | 14.5 % |
| A023173 | Numbers k such that Fibonacci(k) == 1 (mod k) | self-referential | 19.6 % |
| A023197 | Numbers k such that sigma(k) >= 3*k | divisor functions | 16.8 % |
| A023200 | Primes p such that p + 4 is also prime | primes | 46.8 % |
| A023201 | Primes p such that p + 6 is also prime. (Lesser of a pair of sexy primes.) | primes | 34.6 % |
| A023202 | Primes p such that p + 8 is also prime | primes | 47.0 % |
| A023203 | Primes p such that p + 10 is also prime | primes | 45.0 % |
| A023204 | Primes p such that 2*p + 3 is also prime | primes | 36.4 % |
| A023205 | Numbers m such that m and 2*m + 5 are both prime | primes | 44.8 % |
| A023208 | Primes p such that 3*p + 2 is also prime | primes | 36.4 % |
| A023209 | Primes p such that 3p + 4 is also prime | primes | 36.4 % |
| A023210 | Primes p such that 3*p + 8 is also prime | primes | 37.2 % |
| A023211 | Primes p such that 3*p + 10 is also prime | primes | 34.8 % |
| A023212 | Primes p such that 4*p+1 is also prime | primes | 47.6 % |
| A023213 | Primes p such that 4p + 3 is prime | primes | 37.2 % |
| A023214 | Primes p such that 4*p + 5 is also prime | primes | 45.4 % |
| A023215 | Primes p such that 4*p + 7 is also prime | primes | 46.0 % |
| A023216 | Primes p such that 4*p + 9 is also prime | primes | 37.5 % |
| A023217 | Primes p such that 5*p + 2 is also prime | primes | 45.2 % |
| A023218 | Primes p such that 5*p + 4 is also prime | primes | 45.5 % |
| A023219 | Primes p such that 5p+6 is a prime | primes | 34.5 % |
| A023220 | Primes p such that 5*p + 8 is also prime | primes | 45.4 % |
| A023221 | Primes p such that 6*p + 5 is also prime | primes | 34.9 % |
| A023222 | Primes p such that 6*p + 7 is also prime | primes | 36.2 % |
| A023223 | Primes p such that 7*p + 2 is also prime | primes | 46.7 % |
| A023224 | Primes p such that 7*p + 4 is also prime | primes | 47.1 % |
| A023225 | Primes p such that 7*p + 6 is also prime | primes | 35.4 % |
| A023226 | Primes p such that 7*p + 8 is also prime | primes | 46.5 % |
| A023227 | Primes p such that 7*p + 10 is also prime | primes | 44.2 % |
| A023229 | Primes p such that 8*p + 3 is also prime | primes | 37.7 % |
| A023231 | Primes p such that 8*p + 7 is also prime | primes | 46.6 % |
| A023232 | Primes p such that 8*p + 9 is also prime | primes | 36.7 % |
| A023233 | Primes p such that 9*p + 2 is also prime | primes | 37.4 % |
| A023234 | Primes p such that 9*p + 4 is also prime | primes | 37.7 % |
| A023235 | Primes p such that 9*p + 8 is also prime | primes | 37.7 % |
| A023236 | Primes p such that 9*p + 10 is also prime | primes | 34.8 % |
| A023237 | Primes p such that 10*p + 1 is also prime | primes | 45.7 % |
| A023238 | Primes p such that 10*p + 3 is also prime | primes | 34.9 % |
| A023239 | Primes p such that 10*p + 7 is also prime | primes | 44.5 % |
| A023240 | Primes p such that 10*p + 9 is also prime | primes | 35.1 % |
| A023241 | Primes that remain prime through 2 iterations of function f(x) = x + 6 | primes | 49.1 % |
| A023688 | Numbers with exactly 6 ones in binary expansion | binary rule | 8.9 % |
| A023689 | Numbers with exactly 7 ones in binary expansion | binary rule | 9.4 % |
| A023690 | Numbers with exactly 8 ones in binary expansion | binary rule | 11.4 % |
| A023691 | Numbers with exactly 9 ones in binary expansion | binary rule | 12.2 % |
| A023692 | Numbers with a single 1 in their ternary expansion | digit rule | 23.5 % |
| A023699 | Numbers with a single 2 in their ternary expansion | digit rule | 16.8 % |
| A023705 | Numbers with no 0's in base-4 expansion | digit rule | 12.2 % |
| A023706 | Numbers with a single 0 in their base 4 expansion | digit rule | 12.5 % |
| A023709 | Numbers with no 1's in their base 4 expansion | digit rule | 13.8 % |
| A023710 | Numbers with a single 1 in their base 4 expansion | digit rule | 15.9 % |
| A023713 | Numbers with no 2's in their base 4 expansion | digit rule | 14.2 % |
| A023714 | Numbers with a single 2 in their base 4 expansion | digit rule | 13.9 % |
| A023717 | Numbers with no 3's in base-4 expansion | digit rule | 7.8 % |
| A023718 | Numbers with a single 3 in their base 4 expansion | digit rule | 9.9 % |
| A023721 | Numbers with no 0's in their base-5 expansion | digit rule | 10.3 % |
| A023722 | Numbers with a single 0 in their base 5 expansion | digit rule | 10.6 % |
| A023725 | Numbers with no 1's in their base-5 expansion | digit rule | 13.0 % |
| A023726 | Numbers with a single 1 in their base 5 expansion | digit rule | 15.1 % |
| A023729 | Numbers with no 2's in their base-5 expansion | digit rule | 13.3 % |
| A023730 | Numbers with a single 2 in their base 5 expansion | digit rule | 15.0 % |
| A023733 | Numbers with no 3's in base-5 expansion | digit rule | 6.9 % |
| A023734 | Numbers with a single 3 in their base-5 expansion | digit rule | 8.1 % |
| A023738 | Numbers with a single 4 in their base 5 expansion | digit rule | 12.4 % |
| A024206 | Expansion of x^2*(1+x-x^2)/((1-x^2)*(1-x)^2) | polynomial | 100.0 % |
| A024619 | Numbers that are not powers of primes p^k (k >= 0); complement of A000961 | complement | 10.6 % |
| A024675 | Average of two consecutive odd primes | primes | 24.9 % |
| A024892 | Numbers k such that 3*k+1 is prime | prime values | 17.9 % |
| A024893 | Numbers k such that 3*k+2 is prime | prime values | 25.9 % |
| A024894 | Numbers k such that 5*k + 1 is prime | prime values | 21.5 % |
| A024895 | Numbers k such that 5*k - 3 is prime | prime values | 14.6 % |
| A024896 | Numbers k such that 5*k - 2 is prime | prime values | 30.1 % |
| A024897 | Numbers k such that 5*k + 4 is prime | prime values | 29.9 % |
| A024898 | Positive integers k such that 6*k - 1 is prime | prime values | 18.1 % |
| A024899 | Numbers k such that 6*k + 1 is prime | prime values | 17.9 % |
| A024900 | Numbers k such that 7*k + 6 is prime | prime values | 24.9 % |
| A024901 | Numbers k such that 7*k - 2 is prime | prime values | 30.1 % |
| A024902 | Numbers k such that 7*k + 4 is prime | prime values | 30.7 % |
| A024903 | Numbers k such that 7*k - 4 is prime | prime values | 31.6 % |
| A024904 | Numbers k such that 7*k - 5 is prime | prime values | 20.2 % |
| A024905 | Numbers k such that 7*k + 1 is prime | prime values | 22.7 % |
| A024906 | Numbers k such that 9*k + 1 is prime | prime values | 18.2 % |
| A024907 | Numbers k such that 9*k - 7 is prime | prime values | 17.7 % |
| A024908 | Numbers k such that 9*k - 5 is prime | prime values | 16.8 % |
| A024909 | Numbers k such that 9*k - 4 is prime | prime values | 26.1 % |
| A024910 | Numbers k such that 9*k - 2 is prime | prime values | 28.0 % |
| A024912 | Numbers k such that 10*k + 1 is prime | prime values | 21.5 % |
| A024913 | Numbers k such that 10*k - 7 is prime | prime values | 20.3 % |
| A024914 | Numbers k such that 10*k - 3 is prime | prime values | 14.6 % |
| A024916 | a(n) = Sum_{k=1..n} k*floor(n/k); also Sum_{k=1..n} sigma(k) where sigma(n) = sum of divisors of n (A000203) | summatory | 100.0 % |
| A024974 | Numbers that are the sum of 3 distinct positive cubes in 2 or more ways | powers | 34.7 % |
| A024975 | Sums of three distinct positive cubes | powers | 22.4 % |
| A025284 | Numbers that are the sum of 2 nonzero squares in exactly 1 way | quadratic form | 18.2 % |
| A025395 | Numbers that are the sum of 3 positive cubes in exactly 1 way | quadratic form | 22.9 % |
| A025475 | 1 and the prime powers p^m where m >= 2, thus excluding the primes | powers | 100.0 % |
| A025583 | Composite numbers that are not the sum of 2 primes | multiplicative | 5.4 % |
| A025584 | Primes p such that p-2 is not a prime | primes | 25.7 % |
| A026351 | a(n) = floor(n*phi) + 1, where phi = (1+sqrt(5))/2 | Beatty | 12.1 % |
| A026424 | Number of prime divisors (counted with multiplicity) is odd; Liouville function lambda(n) (A008836) is negative | multiplicative | 12.8 % |
| A026430 | a(n) is the sum of first n terms of A001285 (Thue-Morse sequence) | binary rule | 17.5 % |
| A027444 | a(n) = n^3 + n^2 + n | polynomial | 100.0 % |
| A027469 | a(n) = 49*(n-1)*(n-2)/2 | polynomial | 100.0 % |
| A027470 | a(n) = 225*(n-1)*(n-2)/2 | polynomial | 100.0 % |
| A027480 | a(n) = n*(n+1)*(n+2)/2 | polynomial | 100.0 % |
| A027575 | a(n) = n^2 + (n+1)^2 + (n+2)^2 + (n+3)^2 | polynomial | 100.0 % |
| A027602 | a(n) = n^3 + (n+1)^3 + (n+2)^3 | polynomial | 100.0 % |
| A027603 | a(n) = n^3 + (n+1)^3 + (n+2)^3 + (n+3)^3 | polynomial | 100.0 % |
| A027604 | a(n) = n^3 + (n+1)^3 + (n+2)^3 + (n+3)^3 + (n+4)^3 | polynomial | 100.0 % |
| A027620 | a(n) = n + (n+1)^2 + (n+2)^3 | polynomial | 100.0 % |
| A027688 | a(n) = n^2 + n + 3 | polynomial | 100.0 % |
| A027689 | a(n) = n^2 + n + 4 | polynomial | 100.0 % |
| A027690 | a(n) = n^2 + n + 5 | polynomial | 100.0 % |
| A027691 | a(n) = n^2 + n + 6 | polynomial | 100.0 % |
| A027692 | a(n) = n^2 + n + 7 | polynomial | 100.0 % |
| A027693 | a(n) = n^2 + n + 8 | polynomial | 100.0 % |
| A027694 | a(n) = n^2 + n + 9 | polynomial | 100.0 % |
| A027697 | Odious primes: primes with odd number of 1's in binary expansion | primes | 29.6 % |
| A027699 | Evil primes: primes with even number of 1's in their binary expansion | primes | 30.3 % |
| A027752 | Numbers k such that k^2 + k + 3 is prime | prime values | 32.7 % |
| A027753 | Primes of form n^2 + n + 3 | primes | 100.0 % |
| A027754 | Numbers k such that k^2 + k + 5 is prime | prime values | 24.6 % |
| A027755 | Primes of the form k^2 + k + 5 | primes | 100.0 % |
| A027756 | Numbers k such that k^2 + k + 7 is prime | prime values | 24.1 % |
| A027757 | Numbers k such that k^2 + k + 9 is prime | prime values | 33.4 % |
| A027758 | Primes of the form k^2 + k + 9 | primes | 100.0 % |
| A027849 | a(n) = (n+1)*(5*n^2+4*n+1) | polynomial | 100.0 % |
| A027861 | Numbers k such that k^2 + (k+1)^2 is prime | prime values | 22.3 % |
| A027862 | Primes of the form j^2 + (j+1)^2 | primes | 100.0 % |
| A027863 | Numbers k such that k^2 + (k+1)^2 + (k+2)^2 is prime | prime values | 23.5 % |
| A027866 | Numbers k such that k^2 + (k+1)^2 + (k+2)^2 + (k+3)^2 + (k+4)^2 + (k+5)^2 is prime | prime values | 21.4 % |
| A027867 | Primes of the form n^2 + (n+1)^2 + (n+2)^2 + (n+3)^2 + (n+4)^2 + (n+5)^2 | primes | 100.0 % |
| A027903 | a(n) = n*(n + 1)*(3*n + 1) | polynomial | 100.0 % |
| A028260 | Numbers with an even number of prime divisors (counted with multiplicity); numbers k such that the Liouville function lambda(k) (A008836) is positive | multiplicative | 12.8 % |
| A028347 | a(n) = n^2 - 4 | polynomial | 100.0 % |
| A028373 | Numbers that have only the straight digits {1, 4, 7} | digit rule | 18.0 % |
| A028374 | Numbers that have only curved digits {0, 3, 6, 8, 9} or digits that are both curved and linear {2, 5} | digit rule | 13.9 % |
| A028387 | a(n) = n + (n+1)^2 | polynomial | 100.0 % |
| A028552 | a(n) = n*(n+3) | polynomial | 100.0 % |
| A028557 | a(n) = n*(n+5) | polynomial | 100.0 % |
| A028560 | a(n) = n*(n + 6) | polynomial | 100.0 % |
| A028563 | a(n) = n*(n+7) | polynomial | 100.0 % |
| A028566 | a(n) = n*(n+8) | polynomial | 100.0 % |
| A028569 | a(n) = n*(n + 9) | polynomial | 100.0 % |
| A028823 | Numbers k such that k^2 + k + 17 is prime | prime values | 18.7 % |
| A028834 | Numbers whose sum of digits is a prime | digit rule | 10.7 % |
| A028835 | Numbers whose iterated sum of digits is a prime | digit rule | 12.2 % |
| A028838 | Numbers whose sum of digits is a power of 2 | digit rule | 27.0 % |
| A028839 | Sum of digits of n is a square | digit rule | 25.2 % |
| A028840 | Numbers k such that sum of digits of k is a Fibonacci number | digit rule | 24.0 % |
| A028846 | Numbers whose product of digits is a power of 2 | digit rule | 5.2 % |
| A028870 | Numbers k such that k^2 - 2 is prime | prime values | 30.1 % |
| A028871 | Primes of the form k^2 - 2 | primes | 100.0 % |
| A028872 | a(n) = n^2 - 3 | polynomial | 100.0 % |
| A028873 | Numbers k such that k^2 - 3 is prime | prime values | 18.9 % |
| A028874 | Primes of form k^2 - 3 | primes | 100.0 % |
| A028876 | Numbers k such that k^2 - 5 is prime | prime values | 19.3 % |
| A028877 | Primes of form k^2 - 5 | primes | 100.0 % |
| A028878 | a(n) = (n+3)^2 - 6 | polynomial | 100.0 % |
| A028879 | Numbers k such that k^2 - 6 is prime | prime values | 31.6 % |
| A028880 | Primes of the form n^2 - 6 | primes | 100.0 % |
| A028881 | a(n) = n^2 - 7 | polynomial | 100.0 % |
| A028882 | Numbers k such that k^2 - 7 is prime | prime values | 18.4 % |
| A028883 | Primes of the form k^2 - 7 | primes | 100.0 % |
| A028884 | a(n) = (n + 3)^2 - 8 | polynomial | 100.0 % |
| A028885 | Numbers k such that k^2 - 8 is prime | prime values | 29.8 % |
| A028886 | Primes of the form k^2 - 8 | primes | 100.0 % |
| A028982 | Squares and twice squares | quadratic form | 66.5 % |
| A028983 | Numbers whose sum of divisors is even | divisor functions | 9.6 % |
| A029581 | Numbers in which all digits are composite | digit rule | 13.7 % |
| A029730 | Numbers that are palindromic in base 16 | digit rule | 76.2 % |
| A029739 | Numbers that are congruent to {1, 3, 4} mod 6 | residue class | 18.0 % |
| A029742 | Nonpalindromic numbers | digit rule | 9.6 % |
| A029803 | Numbers that are palindromic in base 8 | digit rule | 84.9 % |
| A029952 | Palindromic in base 5 | digit rule | 78.4 % |
| A029953 | Palindromic in base 6 | digit rule | 83.2 % |
| A029954 | Palindromic in base 7 | digit rule | 77.1 % |
| A029955 | Palindromic in base 9 | digit rule | 79.6 % |
| A029956 | Numbers that are palindromic in base 11 | digit rule | 75.4 % |
| A029957 | Numbers that are palindromic in base 12 | digit rule | 79.5 % |
| A029958 | Numbers that are palindromic in base 13 | digit rule | 80.8 % |
| A029959 | Numbers that are palindromic in base 14 | digit rule | 83.4 % |
| A029960 | Numbers that are palindromic in base 15 | digit rule | 80.0 % |
| A030059 | Numbers that are the product of an odd number of distinct primes | multiplicative | 14.6 % |
| A030079 | Primes p such that digits of p appear in p^2 | primes | 33.4 % |
| A030096 | Primes whose digits are all odd | primes | 28.3 % |
| A030124 | Complement (and also first differences) of Hofstadter's sequence A005228 | self-referential | 9.6 % |
| A030141 | Numbers in which parity of the decimal digits alternates | digit rule | 14.3 % |
| A030143 | Even numbers in which parity of digits alternates | digit rule | 9.6 % |
| A030144 | Primes in which parity of digits alternates | primes | 27.8 % |
| A030229 | Numbers that are the product of an even number of distinct primes | multiplicative | 14.7 % |
| A030230 | Numbers that have an odd number of distinct prime divisors | multiplicative | 12.7 % |
| A030231 | Numbers with an even number of distinct prime factors | multiplicative | 12.7 % |
| A030430 | Primes of the form 10*n+1 | primes | 37.2 % |
| A030431 | Primes of form 10n+3 | primes | 37.3 % |
| A030432 | Primes of form 10n+7 | primes | 37.3 % |
| A030433 | Primes of form 10*k + 9 | primes | 37.3 % |
| A030457 | Numbers k such that k concatenated with k+1 is prime | digit rule | 26.2 % |
| A030459 | Prime p concatenated with next prime is also prime | primes | 45.6 % |
| A030513 | Numbers with 4 divisors | divisor functions | 15.7 % |
| A030515 | Numbers with exactly 6 divisors | divisor functions | 27.4 % |
| A030626 | Numbers with exactly 8 divisors | divisor functions | 16.5 % |
| A030628 | 1 together with numbers of the form p*q^4 and p^9, where p and q are distinct primes | divisor functions | 29.8 % |
| A030630 | Numbers with 12 divisors | divisor functions | 21.3 % |
| A030632 | Numbers with 14 divisors | multiplicative | 28.9 % |
| A030634 | Numbers with 16 divisors | divisor functions | 19.9 % |
| A030636 | Numbers with 18 divisors | multiplicative | 33.9 % |
| A030638 | Numbers with 20 divisors | divisor functions | 25.9 % |
| A031177 | Unhappy numbers: numbers having period-8 2-digitized sequences | digit rule | 10.4 % |
| A031363 | Positive numbers of the form x^2 + xy - y^2; or, of the form 5x^2 - y^2 | multiplicative | 23.4 % |
| A031368 | Odd-indexed primes: a(n) = prime(2n-1) | primes | 31.1 % |
| A031443 | Digitally balanced numbers: positive numbers that in base 2 have the same number of 0's as 1's | binary rule | 11.8 % |
| A031879 | Nonprime lucky numbers | sieve | 32.0 % |
| A031924 | Primes followed by a gap of 6, i.e., next prime is p + 6 | primes | 36.0 % |
| A031925 | Upper prime of a difference of 6 between consecutive primes | primes | 46.9 % |
| A031926 | Lower prime of a difference of 8 between consecutive primes | primes | 49.2 % |
| A031928 | Lower prime of a difference of 10 between consecutive primes | primes | 47.7 % |
| A031930 | Lower prime of a difference of 12 between consecutive primes | primes | 40.5 % |
| A031932 | Lower prime of a pair of consecutive primes having a difference of 14 | primes | 50.8 % |
| A031934 | Lower prime of a pair of consecutive primes having a difference of 16 | primes | 52.3 % |
| A031936 | Lower prime of a difference of 18 between consecutive primes | primes | 43.1 % |
| A031938 | Lower prime of a difference of 20 between consecutive primes | primes | 53.0 % |
| A031955 | Numbers with exactly two distinct base-10 digits | digit rule | 22.9 % |
| A032352 | Numbers k such that there is no prime between 10*k and 10*k+9 | primes | 14.4 % |
| A032766 | Numbers that are congruent to 0 or 1 (mod 3) | residue class | 17.6 % |
| A032769 | Numbers that are congruent to {0, 1, 2, 4} mod 5 | residue class | 5.9 % |
| A032775 | Numbers that are congruent to {0, 1, 2, 3, 5, 6} mod 7 | residue class | 10.2 % |
| A032793 | Numbers that are congruent to {1, 2, 4} mod 5 | residue class | 5.8 % |
| A032796 | Numbers that are congruent to {1, 2, 3, 5, 6} mod 7 | residue class | 11.0 % |
| A032810 | Numbers using only digits 2 and 3 | digit rule | 12.4 % |
| A032822 | Numbers whose set of base-10 digits is {1,4} | digit rule | 14.7 % |
| A032834 | Numbers with digits 3 and 4 only | digit rule | 6.3 % |
| A032917 | Numbers having only digits 1 and 3 in their decimal representation | digit rule | 14.0 % |
| A032924 | Numbers whose ternary expansion contains no 0 | digit rule | 4.9 % |
| A032981 | Positive numbers with the property that all pairs of consecutive base-10 digits differ by 0 or 1 | digit rule | 11.7 % |
| A033015 | Numbers whose base-2 expansion has no run of digits with length < 2 | binary rule | 19.1 % |
| A033199 | Primes of form x^2+6*y^2 | quadratic form | 39.5 % |
| A033200 | Primes congruent to {1, 3} (mod 8); or, odd primes of form x^2 + 2*y^2 | primes | 28.5 % |
| A033201 | Primes of the form x^2 + 10*y^2 | quadratic form | 37.0 % |
| A033202 | Primes of form x^2+93*y^2 | quadratic form | 44.0 % |
| A033204 | Primes of form x^2 + 94*y^2 | quadratic form | 42.5 % |
| A033205 | Primes of form x^2 + 5*y^2 | primes | 36.7 % |
| A033206 | Primes of form x^2+95*y^2 | quadratic form | 47.5 % |
| A033208 | Primes of form x^2+97*y^2 | quadratic form | 38.0 % |
| A033209 | Primes of form x^2 + 11*y^2 | quadratic form | 37.9 % |
| A033210 | Primes of the form x^2+13*y^2 | quadratic form | 35.2 % |
| A033211 | Primes of form x^2 + 14*y^2 | quadratic form | 35.9 % |
| A033212 | Primes congruent to 1 or 19 (mod 30) | primes | 43.8 % |
| A033213 | Primes of form x^2+17*y^2 | quadratic form | 37.0 % |
| A033214 | Primes of form x^2+19*y^2 | quadratic form | 37.9 % |
| A033215 | Primes of form x^2+21*y^2 | quadratic form | 41.7 % |
| A033216 | Primes of form x^2+22*y^2 | quadratic form | 35.3 % |
| A033217 | Primes of form x^2 + 23*y^2 | quadratic form | 35.3 % |
| A033218 | Primes of form x^2+26*y^2 | quadratic form | 42.5 % |
| A033219 | Primes of form x^2+29*y^2 | quadratic form | 41.7 % |
| A033220 | Primes of form x^2+30*y^2 | quadratic form | 48.2 % |
| A033221 | Primes of form x^2+31*y^2 | quadratic form | 35.6 % |
| A033222 | Primes of form x^2+33*y^2 | quadratic form | 46.3 % |
| A033223 | Primes of form x^2+34*y^2 | quadratic form | 37.4 % |
| A033224 | Primes of form x^2+35*y^2 | quadratic form | 42.1 % |
| A033225 | Primes of form x^2+37*y^2 | quadratic form | 34.2 % |
| A033226 | Primes of form x^2+38*y^2 | quadratic form | 42.5 % |
| A033227 | Primes of form x^2+39*y^2 | quadratic form | 45.2 % |
| A033228 | Primes of form x^2+41*y^2 | quadratic form | 42.5 % |
| A033229 | Primes of form x^2+42*y^2 | quadratic form | 42.1 % |
| A033230 | Primes of form x^2+43*y^2 | quadratic form | 37.3 % |
| A033231 | Primes of form x^2+46*y^2 | quadratic form | 36.9 % |
| A033232 | Primes of form x^2+47*y^2 | quadratic form | 39.5 % |
| A033233 | Primes of form x^2+51*y^2 | quadratic form | 45.4 % |
| A033234 | Primes of form x^2+53*y^2 | quadratic form | 41.5 % |
| A033235 | Primes of the form x^2 + 55*y^2 | quadratic form | 43.1 % |
| A033236 | Primes of form x^2+57*y^2 | quadratic form | 45.5 % |
| A033237 | Primes of form x^2+58*y^2 | quadratic form | 34.5 % |
| A033238 | Primes of form x^2+59*y^2 | quadratic form | 44.5 % |
| A033239 | Primes of form x^2+61*y^2 | quadratic form | 41.6 % |
| A033240 | Primes of form x^2+62*y^2 | quadratic form | 42.4 % |
| A033241 | Primes of form x^2+65*y^2 | quadratic form | 47.9 % |
| A033242 | Primes of form x^2+66*y^2 | quadratic form | 50.2 % |
| A033243 | Primes of form x^2+67*y^2 | quadratic form | 37.0 % |
| A033244 | Primes of form x^2+69*y^2 | quadratic form | 47.3 % |
| A033245 | Primes of form x^2+70*y^2 | quadratic form | 39.1 % |
| A033246 | Primes of form x^2+71*y^2 | quadratic form | 41.7 % |
| A033247 | Primes of form x^2+73*y^2 | quadratic form | 37.8 % |
| A033248 | Primes of the form x^2+74*y^2 | quadratic form | 45.3 % |
| A033249 | Primes of form x^2+77*y^2 | quadratic form | 42.3 % |
| A033250 | Primes of form x^2+78*y^2 | quadratic form | 45.5 % |
| A033251 | Primes of form x^2+79*y^2 | quadratic form | 39.5 % |
| A033252 | Primes of form x^2+82*y^2 | quadratic form | 37.8 % |
| A033253 | Primes of form x^2+83*y^2 | quadratic form | 44.1 % |
| A033254 | Primes of form x^2+85*y^2 | quadratic form | 40.5 % |
| A033255 | Primes of form x^2+86*y^2 | quadratic form | 45.3 % |
| A033256 | Primes of form x^2+87*y^2 | quadratic form | 47.4 % |
| A033257 | Primes of form x^2+89*y^2 | quadratic form | 45.6 % |
| A033258 | Primes of form x^2+91*y^2 | quadratic form | 40.3 % |
| A033286 | a(n) = n * prime(n) | primes | 100.0 % |
| A033298 | a(n+1) = a(n) + sum of digits of a(n)^2, with a(1) = 1 | digit rule | 32.1 % |
| A033428 | a(n) = 3*n^2 | polynomial | 100.0 % |
| A033429 | a(n) = 5*n^2 | polynomial | 100.0 % |
| A033430 | a(n) = 4*n^3 | polynomial | 100.0 % |
| A033431 | a(n) = 2*n^3 | polynomial | 100.0 % |
| A033537 | a(n) = n*(2*n+5) | polynomial | 100.0 % |
| A033556 | a(n+1) = 2a(n) - {largest prime < a(n)} | primes | 100.0 % |
| A033560 | Primes p such that 4!+p is also prime | primes | 35.2 % |
| A033562 | a(n) = 2*n^3 + 1 | polynomial | 100.0 % |
| A033567 | a(n) = (2*n-1)*(4*n-1) | polynomial | 100.0 % |
| A033568 | Second pentagonal numbers with odd index: a(n) = (2*n-1)*(3*n-1) | polynomial | 100.0 % |
| A033571 | a(n) = (2*n + 1)*(5*n + 1) | polynomial | 100.0 % |
| A033572 | a(n) = (2*n+1)*(7*n+1) | polynomial | 100.0 % |
| A033573 | a(n) = (2*n+1)*(9*n+1) | polynomial | 100.0 % |
| A033574 | a(n) = (2*n+1)*(10*n+1) | polynomial | 100.0 % |
| A033575 | a(n) = (2*n+1)*(11*n+1) | polynomial | 100.0 % |
| A033576 | a(n) = (2*n+1)*(12*n+1) | polynomial | 100.0 % |
| A033577 | a(n) = (3*n+1)*(4*n+1) | polynomial | 100.0 % |
| A033578 | a(n) = (3*n - 1)*(4*n - 1) | polynomial | 100.0 % |
| A033581 | a(n) = 6*n^2 | polynomial | 100.0 % |
| A033582 | a(n) = 7*n^2 | polynomial | 100.0 % |
| A033583 | a(n) = 10*n^2 | polynomial | 100.0 % |
| A033584 | a(n) = 11*n^2 | polynomial | 100.0 % |
| A033585 | a(n) = 2*n*(4*n + 1) | polynomial | 100.0 % |
| A033586 | a(n) = 4*n*(2*n + 1) | polynomial | 100.0 % |
| A033587 | a(n) = 2*n*(4*n + 3) | polynomial | 100.0 % |
| A033816 | a(n) = 2*n^2 + 3*n + 3 | polynomial | 100.0 % |
| A033868 | Numbers n such that 7*n-11 is prime | prime values | 21.3 % |
| A033948 | Numbers that have a primitive root (k such that the multiplicative group modulo k is cyclic) | multiplicative | 15.3 % |
| A033949 | Positive integers that do not have a primitive root | multiplicative | 11.6 % |
| A033950 | Refactorable numbers: number of divisors of k divides k. Also known as tau numbers | multiplicative | 16.9 % |
| A033991 | a(n) = n*(4*n-1) | polynomial | 100.0 % |
| A033992 | Numbers that are divisible by exactly three different primes | multiplicative | 13.6 % |
| A033993 | Numbers that are divisible by exactly four different primes | multiplicative | 17.2 % |
| A033994 | a(n) = n*(n+1)*(5*n+1)/6 | polynomial | 100.0 % |
| A034017 | Numbers that are primitively represented by x^2 + xy + y^2 | quadratic form | 29.7 % |
| A034020 | Not of the form x^2 + x*y + y^2 | quadratic form | 9.2 % |
| A034048 | Numbers with multiplicative digital root value 0 | digit rule | 10.2 % |
| A034262 | a(n) = n^3 + n | polynomial | 100.0 % |
| A034470 | Prime numbers using only the curved digits 0, 2, 3, 5, 6, 8 and 9 | primes | 29.9 % |
| A034683 | Unitary abundant numbers: numbers k such that usigma(k) > 2*k | divisor functions | 14.6 % |
| A034705 | Numbers that are sums of consecutive squares | summatory | 38.5 % |
| A034707 | Numbers that are sums (of a nonempty sequence) of consecutive primes | primes | 13.1 % |
| A034709 | Numbers divisible by their last digit | digit rule | 15.2 % |
| A034721 | a(n) = (10*n^3 - 9*n^2 + 2*n)/3 + 1 | polynomial | 100.0 % |
| A034837 | Numbers that are divisible by the first, i.e., the leftmost, digit | digit rule | 9.2 % |
| A034838 | Numbers k that are divisible by every digit of k | digit rule | 14.7 % |
| A034844 | Primes with only nonprime decimal digits | primes | 34.6 % |
| A034936 | Numbers k such that 3*k + 4 is prime | prime values | 26.6 % |
| A034961 | Sums of three consecutive primes | primes | 41.7 % |
| A034962 | Primes that are the sum of three consecutive primes | primes | 45.0 % |
| A034963 | Sums of four consecutive primes | primes | 31.4 % |
| A034965 | Primes that are sum of five consecutive primes | primes | 49.7 % |
| A035005 | Number of possible queen moves on an n X n chessboard | polynomial | 100.0 % |
| A035006 | Number of possible rook moves on an n X n chessboard | polynomial | 100.0 % |
| A035008 | Total number of possible knight moves on an (n+2) X (n+2) chessboard, if the knight is placed anywhere | polynomial | 100.0 % |
| A035106 | 1, together with numbers of the form k*(k+1) or k*(k+2), k > 0 | polynomial | 100.0 % |
| A035121 | Numbers of the form x^2+82*y^2 | quadratic form | 20.5 % |
| A035328 | a(n) = n*(2*n-1)*(2*n+1) | polynomial | 100.0 % |
| A035329 | a(n) = n*(2*n+5)*(2*n+7) | polynomial | 100.0 % |
| A035333 | Concatenation of two or more consecutive positive integers | digit rule | 99.9 % |
| A035336 | a(n) = 2*floor(n*phi) + n - 1, where phi = (1+sqrt(5))/2 | Beatty | 18.6 % |
| A035497 | Happy primes: primes that eventually reach 1 under iteration of "x -> sum of squares of digits of x" | primes | 37.8 % |
| A035928 | Numbers n such that BCR(n) = n, where BCR = binary-complement-and-reverse = take one's complement then reverse bit order | binary rule | 84.4 % |
| A036301 | Numbers whose sum of even digits and sum of odd digits are equal | digit rule | 28.8 % |
| A036433 | Number of divisors is a digit in the base 10 representation of n | divisor functions | 12.9 % |
| A036435 | Digits are nonzero squares | digit rule | 18.1 % |
| A036441 | a(n+1) = next number having largest prime dividing a(n) as a factor, with a(1) = 2 | self-referential | 100.0 % |
| A036455 | Numbers n such that d(d(n)) is an odd prime, where d(k) is the number of divisors of k | divisor functions | 14.2 % |
| A036537 | Numbers whose number of divisors is a power of 2 | divisor functions | 10.2 % |
| A036554 | Numbers whose binary representation ends in an odd number of zeros | binary rule | 13.9 % |
| A036668 | Hati numbers: of form 2^i*3^j*k, i+j even, (k,6)=1 | multiplicative | 13.1 % |
| A036689 | Product of a prime and the previous number | primes | 100.0 % |
| A036690 | Product of a prime and the following number | primes | 100.0 % |
| A036785 | Numbers divisible by the squares of two distinct primes | multiplicative | 19.2 % |
| A036953 | Primes having only {0, 1, 2} as digits | primes | 36.5 % |
| A036956 | Primes containing only digits from the set (0,1,2,3,4) | primes | 28.8 % |
| A036958 | Primes containing only digits from the set (0,1,2,3,4,5) | primes | 28.6 % |
| A036960 | Primes containing only digits from the set (0,1,2,3,4,5,6) | primes | 28.1 % |
| A036962 | Primes without {8, 9} as digits | primes | 26.9 % |
| A036990 | Numbers n such that, in the binary expansion of n, reading from right to left, the number of 1's never exceeds the number of 0's | binary rule | 4.7 % |
| A037020 | Numbers whose sum of proper (or aliquot) divisors is a prime | multiplicative | 28.4 % |
| A037029 | Primes of the form 666*n + 1 | primes | 69.1 % |
| A037030 | Numbers n such that 666*n + 1 is prime | prime values | 19.5 % |
| A037085 | Beatty sequence for Pi^2 | Beatty | 24.8 % |
| A037086 | Beatty sequence for sqrt(Pi) | Beatty | 12.8 % |
| A037087 | Beatty sequence for e^(1/e) | Beatty | 11.4 % |
| A037123 | a(n) = a(n-1) + sum of digits of n | summatory | 28.3 % |
| A037144 | Numbers with at most 3 prime factors (counted with multiplicity) | multiplicative | 9.6 % |
| A037235 | a(n) = n*(2*n^2 - 3*n + 4)/3 | polynomial | 100.0 % |
| A037301 | Numbers whose base-2 and base-3 expansions have the same digit sum | digit rule | 17.9 % |
| A037308 | Numbers whose base-2 and base-10 expansions have the same digit sum | digit rule | 21.3 % |
| A037372 | Positive numbers k such that every base-2 digit of k is a base-3 digit of k | digit rule | 9.5 % |
| A037373 | Positive numbers k such that every base-2 digit of k is a base-4 digit of k | digit rule | 9.7 % |
| A037374 | Positive numbers k such that every base-2 digit of k is a base-5 digit of k | digit rule | 10.0 % |
| A037380 | Numbers whose base-3 digits are all present among their base-4 digits | digit rule | 9.7 % |
| A037386 | Every base 3 digit of n is a base 10 digit of n | digit rule | 14.1 % |
| A038130 | Beatty sequence for 2*Pi | Beatty | 21.9 % |
| A038152 | Beatty sequence for e^Pi | Beatty | 30.7 % |
| A038153 | Beatty sequence for Pi^e | Beatty | 30.5 % |
| A038366 | n is divisible by (product of digits) + (sum of digits) | digit rule | 19.4 % |
| A038367 | Numbers n with property that (product of digits of n) is divisible by (sum of digits of n) | digit rule | 11.8 % |
| A038368 | n is divisible by |(product of digits) - (sum of digits)| | digit rule | 19.5 % |
| A038509 | Composite numbers congruent to +-1 mod 6 | multiplicative | 15.1 % |
| A038550 | Products of an odd prime and a power of two (sorted) | primes | 12.0 % |
| A038580 | Primes with indices that are primes with prime indices | primes | 64.6 % |
| A038599 | Numbers k such that k^3 - 2 is prime | prime values | 35.4 % |
| A038603 | Primes not containing the digit '1' | primes | 25.0 % |
| A038604 | Primes not containing the digit '2' | primes | 23.5 % |
| A038611 | Primes not containing the digit '3' | primes | 27.4 % |
| A038612 | Primes not containing the digit '4' | primes | 23.8 % |
| A038613 | Primes not containing the digit '5' | primes | 23.6 % |
| A038614 | Primes not containing the digit '6' | primes | 23.6 % |
| A038615 | Primes not containing the digit '7' | primes | 25.3 % |
| A038617 | Primes not containing the digit '9' | primes | 26.8 % |
| A038618 | Primes not containing the digit '0' | primes | 23.6 % |
| A038764 | a(n) = (9*n^2 + 3*n + 2)/2 | polynomial | 100.0 % |
| A038770 | Numbers divisible by at least one of their digits | digit rule | 11.1 % |
| A038772 | Numbers not divisible by any of their digits | digit rule | 10.9 % |
| A038812 | Number of primes less than 1000n | primes | 36.7 % |
| A038865 | a(n) = (n+3)^3 - n^3 | polynomial | 100.0 % |
| A038866 | a(n) = (n+4)^3 - n^3 | polynomial | 100.0 % |
| A038867 | a(n) = (n+5)^3 - n^3 | polynomial | 100.0 % |
| A038873 | Primes p such that 2 is a square mod p; or, primes congruent to {1, 2, 7} mod 8 | primes | 28.3 % |
| A039004 | Numbers whose base-4 representation has the same number of 1's and 2's | digit rule | 10.8 % |
| A039770 | Numbers k such that phi(k) is a perfect square | divisor functions | 41.3 % |
| A039787 | Primes p such that p-1 is squarefree | primes | 30.0 % |
| A039949 | Primes of the form 30n - 13 | primes | 48.5 % |
| A039955 | Squarefree numbers congruent to 1 (mod 4) | multiplicative | 22.9 % |
| A039956 | Even squarefree numbers | multiplicative | 17.5 % |
| A039957 | Squarefree numbers congruent to 3 mod 4 | multiplicative | 23.0 % |
| A040098 | Primes p such that x^4 = 2 has a solution mod p | primes | 30.5 % |
| A040117 | Primes congruent to 5 (mod 12). Also primes p such that x^4 = 9 has no solution mod p | primes | 40.3 % |
| A040976 | a(n) = prime(n) - 2 | primes | 30.6 % |
| A042963 | Numbers congruent to 1 or 2 mod 4 | residue class | 12.3 % |
| A042965 | Nonnegative integers not congruent to 2 mod 4 | residue class | 12.5 % |
| A042987 | Primes congruent to {2, 3, 5, 7} mod 8 | primes | 25.1 % |
| A042988 | Primes not congruent to -1 (mod 7) | primes | 25.7 % |
| A042989 | Primes congruent to {0, 2, 3, 4, 5} mod 7 | primes | 27.3 % |
| A042990 | Primes not congruent to 4 (mod 7) | primes | 24.3 % |
| A042992 | Primes congruent to {0, 2, 3, 5, 6} (mod 7) | primes | 24.8 % |
| A042994 | Primes congruent to {0, 1, 2, 3, 5} (mod 7) | primes | 27.7 % |
| A042995 | Primes congruent to {0, 2, 3, 5} (mod 7) | primes | 29.5 % |
| A042997 | Primes congruent to {2, 3, 4, 5, 6} (mod 7) | primes | 24.1 % |
| A042998 | Primes congruent to {1, 2, 3, 5} (mod 8) | primes | 25.0 % |
| A043096 | Numbers in which every pair of adjacent digits are distinct | digit rule | 9.7 % |
| A043489 | Numbers having one 0 in base 10 | digit rule | 9.9 % |
| A043493 | Numbers that contain a single 1 | digit rule | 11.3 % |
| A044102 | Multiples of 36 | residue class | 9.6 % |
| A045315 | Primes p such that x^8 = 2 has a solution mod p | primes | 31.7 % |
| A045320 | Primes not congruent to 5 (mod 7) | primes | 25.0 % |
| A045321 | Primes congruent to {1, 2, 3} (mod 5) | primes | 26.1 % |
| A045322 | Primes congruent to {0, 2, 3, 4, 6} (mod 7) | primes | 26.9 % |
| A045323 | Primes congruent to {1, 2, 3, 7} (mod 8) | primes | 25.3 % |
| A045324 | Primes congruent to {0, 1, 2, 3, 4} (mod 7) | primes | 26.4 % |
| A045325 | Primes congruent to {0, 2, 3, 4} (mod 7) | primes | 28.9 % |
| A045327 | Primes congruent to {2, 3, 4} mod 5 | primes | 25.0 % |
| A045328 | Primes congruent to {0, 1, 2, 3, 6} (mod 7) | primes | 27.4 % |
| A045329 | Primes congruent to {0, 2, 3, 6} (mod 7) | primes | 29.4 % |
| A045342 | Primes congruent to {1, 2, 3} mod 7 | primes | 29.6 % |
| A045343 | Primes congruent to {2, 3} mod 7 | primes | 33.8 % |
| A045346 | Primes congruent to {0, 1, 2, 4, 5, 6} mod 7 | primes | 24.4 % |
| A045347 | Primes congruent to {0, 2, 4, 5, 6} mod 7 | primes | 26.0 % |
| A045350 | Primes congruent to {0, 1, 2, 4, 5} mod 7 | primes | 26.6 % |
| A045351 | Primes congruent to {0, 2, 4, 5} mod 7 | primes | 29.4 % |
| A045352 | Primes congruent to {1, 2, 5, 7} mod 8 | primes | 25.0 % |
| A045353 | Primes congruent to {0, 1, 2, 5, 6} mod 7 | primes | 26.4 % |
| A045354 | Primes congruent to {0, 2, 5, 6} mod 7 | primes | 27.8 % |
| A045358 | Primes congruent to {0, 1, 2, 5} mod 7 | primes | 30.1 % |
| A045368 | Primes congruent to {2, 5} mod 7 | primes | 34.3 % |
| A045369 | Primes congruent to {0, 1, 2, 4, 6} mod 7 | primes | 26.3 % |
| A045370 | Primes congruent to {0, 2, 4, 6} mod 7 | primes | 29.4 % |
| A045371 | Primes congruent to {1, 2, 4} mod 5 | primes | 26.6 % |
| A045372 | Primes congruent to {1, 2} mod 5 | primes | 30.3 % |
| A045376 | Primes congruent to {0, 1, 2, 6} mod 7 | primes | 29.6 % |
| A045378 | Primes congruent to {2, 4} mod 5 | primes | 29.0 % |
| A045386 | Primes congruent to {1, 2, 4} mod 7 | primes | 25.9 % |
| A045387 | Primes congruent to {2, 4} mod 7 | primes | 29.5 % |
| A045389 | Primes congruent to {2, 6} mod 7 | primes | 34.4 % |
| A045391 | Primes congruent to {1, 2} mod 7 | primes | 30.0 % |
| A045392 | Primes congruent to 2 mod 7 | primes | 39.1 % |
| A045393 | Primes congruent to {0, 1, 3, 4, 5, 6} mod 7 | primes | 23.7 % |
| A045394 | Primes congruent to {0, 3, 4, 5, 6} mod 7 | primes | 24.8 % |
| A045396 | Primes congruent to {0, 1, 3, 4, 5} mod 7 | primes | 27.5 % |
| A045397 | Primes congruent to {0, 3, 4, 5} mod 7 | primes | 29.8 % |
| A045398 | Primes congruent to {0, 1, 3, 5, 6} mod 7 | primes | 24.7 % |
| A045400 | Primes congruent to {0, 1, 3, 5} mod 7 | primes | 29.6 % |
| A045416 | Primes congruent to {3, 5} mod 7 | primes | 29.9 % |
| A045417 | Primes congruent to {0, 1, 3, 4, 6} mod 7 | primes | 26.3 % |
| A045418 | Primes congruent to {0, 3, 4, 6} mod 7 | primes | 28.7 % |
| A045420 | Primes congruent to {0, 1, 3, 4} mod 7 | primes | 29.2 % |
| A045422 | Primes congruent to {0, 1, 3, 6} mod 7 | primes | 28.7 % |
| A045428 | Primes congruent to {1, 3, 4} mod 5 | primes | 24.4 % |
| A045429 | Primes congruent to {1, 3} mod 5 | primes | 27.1 % |
| A045432 | Primes congruent to {3, 4} mod 7 | primes | 34.0 % |
| A045434 | Primes congruent to {3, 6} mod 7 | primes | 29.0 % |
| A045435 | Primes congruent to {3, 4} mod 5 | primes | 26.0 % |
| A045436 | Primes congruent to {1, 3} mod 7 | primes | 33.9 % |
| A045437 | Primes congruent to 3 mod 7 | primes | 38.7 % |
| A045438 | Primes congruent to {0, 1, 4, 5, 6} mod 7 | primes | 26.3 % |
| A045439 | Primes congruent to {0, 4, 5, 6} mod 7 | primes | 27.7 % |
| A045440 | Primes congruent to {0, 1, 4, 5} mod 7 | primes | 29.6 % |
| A045443 | Primes congruent to {0, 1, 5, 6} mod 7 | primes | 28.1 % |
| A045452 | Primes congruent to {4, 5} mod 7 | primes | 34.0 % |
| A045455 | Primes congruent to {5, 6} mod 7 | primes | 27.5 % |
| A045456 | Primes congruent to {1, 5} mod 7 | primes | 34.6 % |
| A045458 | Primes congruent to 5 mod 7 | primes | 39.0 % |
| A045459 | Primes congruent to {0, 1, 4, 6} mod 7 | primes | 29.5 % |
| A045465 | Primes congruent to {0, 1} mod 7 | primes | 38.9 % |
| A045467 | Primes congruent to {4, 6} mod 7 | primes | 34.1 % |
| A045468 | Primes congruent to {1, 4} mod 5 | primes | 31.8 % |
| A045469 | Primes congruent to {1, 4} mod 7 | primes | 30.0 % |
| A045471 | Primes congruent to 4 mod 7 | primes | 39.1 % |
| A045472 | Primes congruent to {1, 6} mod 7 | primes | 33.7 % |
| A045473 | Primes congruent to 6 mod 7 | primes | 39.1 % |
| A045542 | Sub-perfect powers: perfect powers (squares, cubes etc., not including 1) minus 1 | powers | 99.3 % |
| A045546 | Numbers k such that k^2 + k - 1 is prime | prime values | 20.2 % |
| A045572 | Numbers that are odd but not divisible by 5 | residue class | 18.6 % |
| A045636 | Numbers of the form p^2 + q^2, with p and q primes | primes | 44.4 % |
| A045699 | Numbers of the form p^2 + q^3, p,q prime | primes | 48.6 % |
| A045707 | Primes with first digit 1 | primes | 21.4 % |
| A045708 | Primes with first digit 2 | primes | 21.1 % |
| A045746 | Numbers whose sum of divisors is a triangular number | divisor functions | 63.0 % |
| A045753 | Numbers n such that 4n-1 and 4n+1 are both primes | prime values | 31.9 % |
| A045776 | a(n+1) is smallest multiple of (sum of digits of a(n)) which is > a(n) | self-referential | 10.8 % |
| A045797 | Evenish numbers (prime to 10 and 10's digit is even) | residue class | 21.6 % |
| A045798 | Oddish numbers (prime to 10 and 10's digit is odd) | residue class | 21.5 % |
| A045844 | a(n+1) = a(n) + largest digit of a(n); a(0) = 1 | self-referential | 16.9 % |
| A045920 | Numbers m such that the factorizations of m..m+1 have the same number of primes (including multiplicities) | multiplicative | 20.1 % |
| A045926 | All digits even and nonzero | digit rule | 11.2 % |
| A045939 | Numbers m such that the factorizations of m..m+2 have the same number of primes (including multiplicities) | multiplicative | 30.4 % |
| A045943 | Triangular matchstick numbers: a(n) = 3*n*(n+1)/2 | polynomial | 100.0 % |
| A045944 | Rhombic matchstick numbers: a(n) = n*(3*n+2) | polynomial | 100.0 % |
| A045946 | Star of David matchstick numbers: a(n) = 6*n*(3*n+1) | polynomial | 100.0 % |
| A045954 | Even-Lucky-Numbers: generated by a sieve process like that for Lucky numbers but starting with even numbers | sieve | 20.6 % |
| A045980 | Numbers of the form x^3 + y^3 or x^3 - y^3 | quadratic form | 40.2 % |
| A046025 | Numbers k such that 6*k+1, 12*k+1 and 18*k+1 are all primes | prime values | 44.7 % |
| A046030 | Numbers whose digits are squares | digit rule | 15.6 % |
| A046031 | Digits are cubes | digit rule | 15.8 % |
| A046034 | Numbers whose digits are primes | digit rule | 17.3 % |
| A046099 | Numbers that are not cubefree. Numbers divisible by a cube greater than 1. Complement of A004709 | multiplicative | 14.1 % |
| A046100 | Biquadratefree numbers: numbers that are not divisible by any 4th power greater than 1 | multiplicative | 9.9 % |
| A046101 | Biquadrateful numbers | multiplicative | 13.7 % |
| A046133 | Primes p such that p + 12 is also prime | primes | 35.2 % |
| A046134 | p, p+2 and p+8 are primes | primes | 65.9 % |
| A046135 | Primes p such that p+2 and p+12 are primes | primes | 59.7 % |
| A046136 | Primes p such that p, p+4 and p+10 are primes | primes | 60.2 % |
| A046137 | Primes p such that p+4 and p+12 are also prime | primes | 63.4 % |
| A046138 | Primes p such that p+6 and p+8 are also primes | primes | 63.7 % |
| A046139 | p, p+6 and p+10 are primes | primes | 58.9 % |
| A046141 | p, p+8 and p+12 are primes | primes | 66.3 % |
| A046306 | Numbers that are divisible by exactly 6 primes with multiplicity | multiplicative | 19.0 % |
| A046308 | Numbers that are divisible by exactly 7 primes counting multiplicity | multiplicative | 19.7 % |
| A046310 | Numbers that are divisible by exactly 8 primes counting multiplicity | multiplicative | 20.5 % |
| A046312 | Numbers that are divisible by exactly 9 primes with multiplicity | multiplicative | 21.2 % |
| A046314 | Numbers that are divisible by exactly 10 primes with multiplicity | multiplicative | 21.9 % |
| A046315 | Odd semiprimes: odd numbers divisible by exactly 2 primes (counted with multiplicity) | multiplicative | 21.0 % |
| A046316 | Numbers of the form p*q*r where p,q,r are (not necessarily distinct) odd primes | multiplicative | 25.7 % |
| A046386 | Products of exactly four distinct primes | multiplicative | 21.0 % |
| A046387 | Products of exactly 5 distinct primes | multiplicative | 25.6 % |
| A046388 | Odd numbers of the form p*q where p and q are distinct primes | multiplicative | 21.0 % |
| A046642 | Numbers k such that k and number of divisors d(k) are relatively prime | divisor functions | 16.7 % |
| A046704 | Additive primes: sum of digits is a prime | primes | 31.1 % |
| A046711 | From the Bruck-Ryser theorem: numbers n == 1 or 2 (mod 4) which are also the sum of 2 squares | quadratic form | 17.9 % |
| A046712 | From the Bruck-Ryser theorem: n == 1 or 2 (mod 4) which are not the sum of 2 squares | quadratic form | 15.3 % |
| A046758 | Equidigital numbers | digit rule | 16.2 % |
| A046759 | Economical numbers: write n as a product of primes raised to powers, let D(n) = number of digits in product, l(n) = number of digits in n; sequence gives n such that D(n) < l(n) | digit rule | 41.2 % |
| A046760 | Wasteful numbers | digit rule | 11.5 % |
| A046869 | Good primes (version 1): prime(n)^2 > prime(n-1)*prime(n+1) | primes | 30.9 % |
| A046953 | Numbers k such that 6*k - 1 is composite | complement | 10.3 % |
| A046992 | a(n) = Sum_{k=1..n} pi(k) (cf. A000720) | summatory | 70.3 % |
| A047078 | Primes at which difference pattern X2Y (X and Y >= 6) occurs in A001223 | primes | 49.8 % |
| A047201 | Numbers not divisible by 5 | forced divisor | 10.4 % |
| A047202 | Numbers that are congruent to {2, 3, 4} mod 5 | residue class | 14.9 % |
| A047203 | Numbers that are congruent to {0, 2, 3, 4} mod 5 | residue class | 13.3 % |
| A047204 | Numbers that are congruent to {3, 4} mod 5 | residue class | 5.5 % |
| A047205 | Numbers that are congruent to {0, 3, 4} mod 5 | residue class | 14.9 % |
| A047206 | Numbers that are congruent to {1, 3, 4} mod 5 | residue class | 15.5 % |
| A047207 | Numbers that are congruent to {0, 1, 3, 4} mod 5 | residue class | 13.3 % |
| A047208 | Numbers that are congruent to {0, 4} mod 5 | residue class | 17.6 % |
| A047209 | Numbers that are congruent to {1, 4} mod 5 | residue class | 18.9 % |
| A047211 | Numbers that are congruent to {2, 4} mod 5 | residue class | 10.5 % |
| A047212 | Numbers that are congruent to {0, 2, 4} mod 5 | residue class | 9.7 % |
| A047215 | Numbers that are congruent to {0, 2} mod 5 | residue class | 18.9 % |
| A047216 | Numbers that are congruent to {1, 2} mod 5 | residue class | 12.0 % |
| A047217 | Numbers that are congruent to {0, 1, 2} mod 5 | residue class | 11.1 % |
| A047218 | Numbers that are congruent to {0, 3} mod 5 | residue class | 18.9 % |
| A047219 | Numbers that are congruent to {1, 3} mod 5 | residue class | 8.5 % |
| A047220 | Numbers that are congruent to {0, 1, 3} mod 5 | residue class | 15.5 % |
| A047221 | Numbers that are congruent to {2, 3} mod 5 | residue class | 17.5 % |
| A047222 | Numbers that are congruent to {0, 2, 3} mod 5 | residue class | 15.5 % |
| A047223 | Numbers that are congruent to {1, 2, 3} mod 5 | residue class | 3.8 % |
| A047225 | Numbers that are congruent to {0, 1} mod 6 | residue class | 23.6 % |
| A047227 | Numbers that are congruent to {1, 2, 3, 4} mod 6 | residue class | 13.8 % |
| A047228 | Numbers that are congruent to {2, 3, 4} mod 6 | residue class | 9.0 % |
| A047229 | Numbers that are congruent to {0, 2, 3, 4} mod 6 | residue class | 14.3 % |
| A047230 | Numbers that are congruent to {3, 4} mod 6 | residue class | 16.0 % |
| A047231 | Numbers that are congruent to {0, 3, 4} mod 6 | residue class | 11.4 % |
| A047233 | Numbers that are congruent to {0, 4} mod 6 | residue class | 17.5 % |
| A047234 | Numbers that are congruent to {0, 1, 4} mod 6 | residue class | 18.6 % |
| A047235 | Numbers that are congruent to {2, 4} mod 6 | residue class | 0.0 % |
| A047236 | Numbers that are congruent to {1, 2, 4} mod 6 | residue class | 9.0 % |
| A047237 | Numbers that are congruent to {0, 1, 2, 4} mod 6 | residue class | 10.6 % |
| A047238 | Numbers that are congruent to {0, 2} mod 6 | residue class | 17.6 % |
| A047240 | Numbers that are congruent to {0, 1, 2} mod 6 | residue class | 16.4 % |
| A047241 | Numbers that are congruent to {1, 3} mod 6 | residue class | 26.1 % |
| A047242 | Numbers that are congruent to {0, 1, 3} mod 6 | residue class | 18.0 % |
| A047243 | Numbers that are congruent to {2, 3} mod 6 | residue class | 23.6 % |
| A047244 | Numbers that are congruent to {0, 2, 3} mod 6 | residue class | 13.8 % |
| A047245 | Numbers that are congruent to {1, 2, 3} mod 6 | residue class | 18.0 % |
| A047246 | Numbers that are congruent to {0, 1, 2, 3} mod 6 | residue class | 13.8 % |
| A047249 | Numbers that are congruent to {3, 4, 5} mod 6 | residue class | 9.0 % |
| A047252 | Numbers that are congruent to {0, 1, 3, 4, 5} mod 6 | residue class | 11.3 % |
| A047253 | Numbers that are congruent to {1, 2, 3, 4, 5} mod 6 | residue class | 5.6 % |
| A047254 | Numbers that are congruent to {2, 3, 5} mod 6 | residue class | 22.8 % |
| A047255 | Numbers that are congruent to {1, 2, 3, 5} mod 6 | residue class | 13.8 % |
| A047256 | Numbers that are congruent to {0, 1, 2, 3, 5} mod 6 | residue class | 16.9 % |
| A047257 | Numbers that are congruent to {4, 5} mod 6 | residue class | 0.0 % |
| A047258 | Numbers that are congruent to {0, 4, 5} mod 6 | residue class | 7.4 % |
| A047259 | Numbers that are congruent to {1, 4, 5} mod 6 | residue class | 4.8 % |
| A047260 | Numbers that are congruent to {0, 1, 4, 5} mod 6 | residue class | 10.7 % |
| A047261 | Numbers that are congruent to {2, 4, 5} mod 6 | residue class | 4.8 % |
| A047262 | Numbers that are congruent to {0, 2, 4, 5} mod 6 | residue class | 3.7 % |
| A047263 | Numbers that are congruent to {0, 1, 2, 4, 5} mod 6 | residue class | 5.7 % |
| A047266 | Numbers that are congruent to {0, 1, 5} mod 6 | residue class | 15.6 % |
| A047267 | Numbers that are congruent to {0, 2, 5} mod 6 | residue class | 13.8 % |
| A047268 | Numbers that are congruent to {1, 2, 5} mod 6 | residue class | 9.0 % |
| A047269 | Numbers that are congruent to {0, 1, 2, 5} mod 6 | residue class | 13.9 % |
| A047270 | Numbers that are congruent to {3, 5} mod 6 | residue class | 25.9 % |
| A047271 | Numbers that are congruent to {0, 3, 5} mod 6 | residue class | 15.6 % |
| A047273 | Numbers that are congruent to {0, 1, 3, 5} mod 6 | residue class | 20.8 % |
| A047274 | Numbers that are congruent to {0, 1} mod 7 | residue class | 18.0 % |
| A047275 | Numbers that are congruent to {0, 1, 6} mod 7 | residue class | 15.3 % |
| A047276 | Numbers that are congruent to {2, 6} mod 7 | residue class | 20.4 % |
| A047277 | Numbers that are congruent to {0, 2, 6} mod 7 | residue class | 16.3 % |
| A047278 | Numbers that are congruent to {1, 2, 6} mod 7 | residue class | 12.8 % |
| A047279 | Numbers that are congruent to {0, 1, 2, 6} mod 7 | residue class | 11.1 % |
| A047280 | Numbers that are congruent to {3, 6} mod 7 | residue class | 10.9 % |
| A047281 | Numbers that are congruent to {0, 3, 6} mod 7 | residue class | 10.0 % |
| A047282 | Numbers that are congruent to {1, 3, 6} mod 7 | residue class | 10.6 % |
| A047283 | Numbers that are congruent to {0, 1, 3, 6} mod 7 | residue class | 9.4 % |
| A047284 | Numbers that are congruent to {2, 3, 6} mod 7 | residue class | 10.0 % |
| A047285 | Numbers that are congruent to {0, 2, 3, 6} mod 7 | residue class | 9.4 % |
| A047286 | Numbers that are congruent to {1, 2, 3, 6} mod 7 | residue class | 6.7 % |
| A047287 | Numbers that are congruent to {0, 1, 2, 3, 6} mod 7 | residue class | 6.5 % |
| A047288 | Numbers that are congruent to {4, 6} mod 7 | residue class | 19.7 % |
| A047289 | Numbers that are congruent to {0, 4, 6} mod 7 | residue class | 16.3 % |
| A047290 | Numbers that are congruent to {1, 4, 6} mod 7 | residue class | 17.1 % |
| A047291 | Numbers that are congruent to {0, 1, 4, 6} mod 7 | residue class | 14.4 % |
| A047292 | Numbers that are congruent to {2, 4, 6} mod 7 | residue class | 11.8 % |
| A047293 | Numbers that are congruent to {0, 2, 4, 6} mod 7 | residue class | 10.8 % |
| A047294 | Numbers that are congruent to {1, 2, 4, 6} mod 7 | residue class | 8.1 % |
| A047295 | Numbers that are congruent to {0, 1, 2, 4, 6} mod 7 | residue class | 7.7 % |
| A047296 | Numbers that are congruent to {3, 4, 6} mod 7 | residue class | 16.2 % |
| A047297 | Numbers that are congruent to {0, 3, 4, 6} mod 7 | residue class | 14.4 % |
| A047298 | Numbers that are congruent to {1, 3, 4, 6} mod 7 | residue class | 14.8 % |
| A047299 | Numbers that are congruent to {0, 1, 3, 4, 6} mod 7 | residue class | 13.1 % |
| A047300 | Numbers that are congruent to {2, 3, 4, 6} mod 7 | residue class | 14.4 % |
| A047301 | Numbers that are congruent to {0, 2, 3, 4, 6} mod 7 | residue class | 13.2 % |
| A047302 | Numbers that are congruent to {1, 2, 3, 4, 6} mod 7 | residue class | 11.0 % |
| A047303 | Numbers that are congruent to {0, 1, 2, 3, 4, 6} mod 7 | residue class | 10.1 % |
| A047305 | Numbers that are congruent to {2, 3, 4, 5, 6} mod 7 | residue class | 12.8 % |
| A047306 | Numbers that are congruent to {0, 2, 3, 4, 5, 6} mod 7 | residue class | 12.0 % |
| A047307 | Numbers that are congruent to {3, 4, 5, 6} mod 7 | residue class | 13.8 % |
| A047308 | Numbers that are congruent to {0, 3, 4, 5, 6} mod 7 | residue class | 12.8 % |
| A047309 | Numbers that are congruent to {1, 3, 4, 5, 6} mod 7 | residue class | 13.1 % |
| A047310 | Numbers that are congruent to {0, 1, 3, 4, 5, 6} mod 7 | residue class | 12.0 % |
| A047311 | Numbers that are congruent to {4, 5, 6} mod 7 | residue class | 15.3 % |
| A047312 | Numbers that are congruent to {0, 4, 5, 6} mod 7 | residue class | 13.8 % |
| A047313 | Numbers that are congruent to {1, 4, 5, 6} mod 7 | residue class | 14.4 % |
| A047314 | Numbers that are congruent to {0, 1, 4, 5, 6} mod 7 | residue class | 12.8 % |
| A047315 | Numbers that are congruent to {2, 4, 5, 6} mod 7 | residue class | 10.4 % |
| A047316 | Numbers that are congruent to {0, 2, 4, 5, 6} mod 7 | residue class | 9.9 % |
| A047317 | Numbers that are congruent to {1, 2, 4, 5, 6} mod 7 | residue class | 7.6 % |
| A047318 | Numbers that are congruent to {0, 1, 2, 4, 5, 6} mod 7 | residue class | 7.4 % |
| A047319 | Numbers that are congruent to {5, 6} mod 7 | residue class | 5.0 % |
| A047320 | Numbers that are congruent to {0, 5, 6} mod 7 | residue class | 15.3 % |
| A047321 | Numbers that are congruent to {1, 5, 6} mod 7 | residue class | 16.2 % |
| A047322 | Numbers that are congruent to {0, 1, 5, 6} mod 7 | residue class | 13.7 % |
| A047323 | Numbers that are congruent to {2, 5, 6} mod 7 | residue class | 16.6 % |
| A047324 | Numbers that are congruent to {0, 2, 5, 6} mod 7 | residue class | 14.4 % |
| A047325 | Numbers that are congruent to {1, 2, 5, 6} mod 7 | residue class | 11.8 % |
| A047326 | Numbers that are congruent to {0, 1, 2, 5, 6} mod 7 | residue class | 10.6 % |
| A047327 | Numbers that are congruent to {3, 5, 6} mod 7 | residue class | 16.3 % |
| A047328 | Numbers that are congruent to {0, 3, 5, 6} mod 7 | residue class | 14.4 % |
| A047329 | Numbers that are congruent to {1, 3, 5, 6} mod 7 | residue class | 14.8 % |
| A047330 | Numbers that are congruent to {0, 1, 3, 5, 6} mod 7 | residue class | 13.1 % |
| A047331 | Numbers that are congruent to {2, 3, 5, 6} mod 7 | residue class | 14.4 % |
| A047332 | Numbers that are congruent to {0, 2, 3, 5, 6} mod 7 | residue class | 13.2 % |
| A047335 | Numbers that are congruent to {0, 6} mod 7 | residue class | 18.0 % |
| A047336 | Numbers that are congruent to {1, 6} mod 7 | residue class | 19.7 % |
| A047337 | Numbers that are congruent to {0, 1, 2, 3, 4} mod 7 | residue class | 10.6 % |
| A047338 | Numbers that are congruent to {1, 2, 3, 4} mod 7 | residue class | 5.3 % |
| A047339 | Numbers that are congruent to {2, 3, 4} mod 7 | residue class | 15.2 % |
| A047340 | Numbers that are congruent to {0, 2, 3, 4} mod 7 | residue class | 14.4 % |
| A047341 | Numbers that are congruent to {3, 4} mod 7 | residue class | 18.0 % |
| A047342 | Numbers that are congruent to {0, 3, 4} mod 7 | residue class | 16.5 % |
| A047343 | Numbers that are congruent to {1, 3, 4} mod 7 | residue class | 8.7 % |
| A047344 | Numbers that are congruent to {0, 1, 3, 4} mod 7 | residue class | 14.4 % |
| A047352 | Numbers that are congruent to {0, 2} mod 7 | residue class | 19.7 % |
| A047353 | Numbers that are congruent to {1, 2} mod 7 | residue class | 13.1 % |
| A047393 | Numbers that are congruent to {0, 1} mod 8 | residue class | 20.8 % |
| A047394 | Numbers that are congruent to {0, 1, 6} mod 8 | residue class | 12.5 % |
| A047395 | Numbers that are congruent to {0, 2, 6} mod 8 | residue class | 12.5 % |
| A047396 | Numbers that are congruent to {1, 2, 6} mod 8 | residue class | 14.2 % |
| A047397 | Numbers that are congruent to {0, 1, 2, 6} mod 8 | residue class | 9.3 % |
| A047398 | Numbers that are congruent to {3, 6} mod 8 | residue class | 13.5 % |
| A047399 | Numbers that are congruent to {0, 3, 6} mod 8 | residue class | 8.0 % |
| A047400 | Numbers that are congruent to {1, 3, 6} mod 8 | residue class | 13.8 % |
| A047401 | Numbers that are congruent to {0, 1, 3, 6} mod 8 | residue class | 9.0 % |
| A047402 | Numbers that are congruent to {2, 3, 6} mod 8 | residue class | 12.0 % |
| A047403 | Numbers that are congruent to {0, 2, 3, 6} mod 8 | residue class | 9.3 % |
| A047404 | Numbers that are congruent to {1, 2, 3, 6} mod 8 | residue class | 10.6 % |
| A047405 | Numbers that are congruent to {0, 1, 2, 3, 6} mod 8 | residue class | 7.3 % |
| A047406 | Numbers that are congruent to {4, 6} mod 8 | residue class | 9.0 % |
| A047407 | Numbers that are congruent to {0, 4, 6} mod 8 | residue class | 12.8 % |
| A047408 | Numbers that are congruent to {1, 4, 6} mod 8 | residue class | 20.4 % |
| A047409 | Numbers that are congruent to {0, 1, 4, 6} mod 8 | residue class | 14.1 % |
| A047410 | Numbers that are congruent to {2, 4, 6} mod 8 | residue class | 12.4 % |
| A047411 | Numbers that are congruent to {1, 2, 4, 6} mod 8 | residue class | 10.9 % |
| A047412 | Numbers that are congruent to {0, 1, 2, 4, 6} mod 8 | residue class | 7.6 % |
| A047413 | Numbers that are congruent to {3, 4, 6} mod 8 | residue class | 15.5 % |
| A047414 | Numbers that are congruent to {0, 3, 4, 6} mod 8 | residue class | 11.0 % |
| A047415 | Numbers that are congruent to {1, 3, 4, 6} mod 8 | residue class | 15.4 % |
| A047416 | Numbers that are congruent to {0, 1, 3, 4, 6} mod 8 | residue class | 11.3 % |
| A047417 | Numbers that are congruent to {2, 3, 4, 6} mod 8 | residue class | 14.0 % |
| A047418 | Numbers that are congruent to {0, 2, 3, 4, 6} mod 8 | residue class | 11.5 % |
| A047419 | Numbers that are congruent to {1, 2, 3, 4, 6} mod 8 | residue class | 12.6 % |
| A047420 | Numbers that are congruent to {0, 1, 2, 3, 4, 6} mod 8 | residue class | 9.5 % |
| A047422 | Numbers that are congruent to {1, 2, 3, 4, 5, 6} mod 8 | residue class | 10.5 % |
| A047423 | Numbers that are congruent to {2, 3, 4, 5, 6} mod 8 | residue class | 11.2 % |
| A047424 | Numbers that are congruent to {0, 2, 3, 4, 5, 6} mod 8 | residue class | 9.5 % |
| A047425 | Numbers that are congruent to {3, 4, 5, 6} mod 8 | residue class | 11.7 % |
| A047426 | Numbers that are congruent to {0, 3, 4, 5, 6} mod 8 | residue class | 8.7 % |
| A047427 | Numbers that are congruent to {1, 3, 4, 5, 6} mod 8 | residue class | 12.4 % |
| A047428 | Numbers that are congruent to {0, 1, 3, 4, 5, 6} mod 8 | residue class | 9.4 % |
| A047429 | Numbers that are congruent to {4, 5, 6} mod 8 | residue class | 5.9 % |
| A047430 | Numbers that are congruent to {0, 4, 5, 6} mod 8 | residue class | 9.6 % |
| A047431 | Numbers that are congruent to {1, 4, 5, 6} mod 8 | residue class | 15.4 % |
| A047432 | Numbers that are congruent to {0, 1, 4, 5, 6} mod 8 | residue class | 11.3 % |
| A047433 | Numbers that are congruent to {2, 4, 5, 6} mod 8 | residue class | 9.3 % |
| A047434 | Numbers that are congruent to {0, 2, 4, 5, 6} mod 8 | residue class | 7.6 % |
| A047435 | Numbers that are congruent to {1, 2, 4, 5, 6} mod 8 | residue class | 8.7 % |
| A047436 | Numbers that are congruent to {5, 6} mod 8 | residue class | 15.0 % |
| A047437 | Numbers that are congruent to {0, 5, 6} mod 8 | residue class | 9.3 % |
| A047438 | Numbers that are congruent to {1, 5, 6} mod 8 | residue class | 16.0 % |
| A047439 | Numbers that are congruent to {0, 1, 5, 6} mod 8 | residue class | 10.7 % |
| A047440 | Numbers that are congruent to {2, 5, 6} mod 8 | residue class | 14.2 % |
| A047441 | Numbers that are congruent to {0, 2, 5, 6} mod 8 | residue class | 11.0 % |
| A047442 | Numbers that are congruent to {0, 1, 2, 5, 6} mod 8 | residue class | 8.7 % |
| A047443 | Numbers that are congruent to {3, 5, 6} mod 8 | residue class | 15.1 % |
| A047444 | Numbers that are congruent to {0, 3, 5, 6} mod 8 | residue class | 10.6 % |
| A047445 | Numbers that are congruent to {1, 3, 5, 6} mod 8 | residue class | 15.1 % |
| A047446 | Numbers that are congruent to {0, 1, 3, 5, 6} mod 8 | residue class | 11.0 % |
| A047447 | Numbers that are congruent to {2, 3, 5, 6} mod 8 | residue class | 13.7 % |
| A047448 | Numbers that are congruent to {0, 2, 3, 5, 6} mod 8 | residue class | 11.2 % |
| A047450 | Numbers that are congruent to {0, 1, 2, 3, 5, 6} mod 8 | residue class | 9.3 % |
| A047451 | Numbers that are congruent to {0, 6} mod 8 | residue class | 12.3 % |
| A047452 | Numbers that are congruent to {1, 6} mod 8 | residue class | 21.1 % |
| A047453 | Numbers that are congruent to {0, 1, 2, 3, 4} mod 8 | residue class | 7.3 % |
| A047454 | Numbers that are congruent to {1, 2, 3, 4} mod 8 | residue class | 11.7 % |
| A047455 | Numbers that are congruent to {2, 3, 4} mod 8 | residue class | 14.4 % |
| A047456 | Numbers that are congruent to {0, 2, 3, 4} mod 8 | residue class | 9.3 % |
| A047457 | Numbers that are congruent to {3, 4} mod 8 | residue class | 15.0 % |
| A047458 | Numbers that are congruent to {0, 3, 4} mod 8 | residue class | 8.0 % |
| A047459 | Numbers that are congruent to {1, 3, 4} mod 8 | residue class | 15.2 % |
| A047460 | Numbers that are congruent to {0, 1, 3, 4} mod 8 | residue class | 9.0 % |
| A047461 | Numbers that are congruent to {1, 4} mod 8 | residue class | 22.6 % |
| A047467 | Numbers that are congruent to {0, 2} mod 8 | residue class | 18.6 % |
| A047522 | Numbers that are congruent to {1, 7} mod 8 | residue class | 22.0 % |
| A047791 | Numbers n such that n plus digit sum of n (A007953) equals a prime | digit rule | 19.9 % |
| A047845 | a(n) = (m-1)/2, where m is the n-th odd nonprime (A014076(n)) | complement | 9.8 % |
| A047915 | a(n) = 3*n^2-2*n+6 | polynomial | 100.0 % |
| A048058 | a(n) = n^2 + n + 11 | polynomial | 100.0 % |
| A048059 | Primes of the form k^2 + k + 11 | primes | 100.0 % |
| A048097 | Numbers k such that k^2 + k + 11 is prime | prime values | 20.0 % |
| A048098 | Numbers k that are sqrt(k)-smooth: if p | k then p^2 <= k when p is prime | smooth | 17.6 % |
| A048103 | Numbers not divisible by p^p for any prime p | multiplicative | 11.8 % |
| A048109 | Numbers having equally many squarefree and nonsquarefree divisors; number of unitary divisors of n (A034444) = number of non-unitary divisors of n (A048105) | divisor functions | 21.5 % |
| A048161 | Primes p such that q = (p^2 + 1)/2 is also a prime | primes | 45.5 % |
| A048521 | Primes expressible as the sum of an integer plus its digit sum | primes | 23.8 % |
| A048701 | List of binary palindromes of even length (written in base 10) | binary rule | 87.8 % |
| A048988 | Primes of the form 4*k^2 + 4*k + 59 | primes | 100.0 % |
| A048989 | Numbers k such that pi(k) is prime | primes | 11.5 % |
| A049001 | a(n) = prime(n)^2 - 2 | primes | 100.0 % |
| A049039 | Geometric Connell sequence: 1 odd, 2 even, 4 odd, 8 even, .. | block | 14.3 % |
| A049068 | Complement of quarter-squares (A002620) | complement | 9.6 % |
| A049097 | Primes p such that p+1 is squarefree | primes | 31.5 % |
| A049231 | Primes p such that p - 2 is squarefree | primes | 24.8 % |
| A049233 | Primes p such that p + 2 is squarefree | primes | 25.8 % |
| A049282 | Primes p such that both p-2 and p+2 are squarefree | primes | 28.0 % |
| A049422 | Numbers k such that k^2 + 3 is prime | prime values | 20.7 % |
| A049423 | Primes of the form k^2 + 3 | primes | 100.0 % |
| A049445 | Numbers k with the property that the number of 1's in binary expansion of k (see A000120) divides k | binary rule | 19.0 % |
| A049480 | a(n) = (2*n-1)*(n^2 -n +6)/6 | polynomial | 100.0 % |
| A049481 | Primes p such that p + 30 is also prime | primes | 33.9 % |
| A049482 | Primes p such that p + 210 is also prime | primes | 32.0 % |
| A049488 | Primes p such that p+16 is prime | primes | 47.2 % |
| A049489 | Primes p such that p + 32 is also prime | primes | 47.2 % |
| A049490 | a(n) and a(n)+64 both prime | primes | 47.3 % |
| A049492 | Primes p such that p+4 and p+16 are also primes | primes | 65.9 % |
| A049532 | Numbers k such that k^2 + 1 is not squarefree | polynomial | 25.0 % |
| A050265 | Primes of the form 2*n^2 + 11 | primes | 100.0 % |
| A050384 | Nonprimes such that n and phi(n) are relatively prime | multiplicative | 19.5 % |
| A050408 | a(n) = (117*n^2 - 99*n + 2)/2 | polynomial | 100.0 % |
| A050435 | a(n) = composite(composite(n)), where composite = A002808, composite numbers | complement | 10.9 % |
| A050695 | Composite numbers k such that none of the prime factors of k is a substring of k | digit rule | 14.1 % |
| A050795 | Numbers n such that n^2 - 1 is expressible as the sum of two nonzero squares in at least one way | quadratic form | 36.4 % |
| A050813 | Numbers n not palindromic in any base b, 2 <= b <= 10 | digit rule | 9.8 % |
| A050931 | Numbers having a prime factor congruent to 1 mod 6 | multiplicative | 11.6 % |
| A050936 | Sum of two or more consecutive prime numbers | primes | 13.8 % |
| A051004 | Numbers divisible both by their individual digits and by the sum of their digits | digit rule | 19.3 % |
| A051038 | 11-smooth numbers: numbers whose prime divisors are all <= 11 | smooth | 98.7 % |
| A051270 | Numbers that are divisible by exactly 5 different primes | multiplicative | 20.2 % |
| A051283 | Numbers k such that if one writes k = Product p_i^e_i (p_i primes) and P = max p_i^e_i, then k/P > P | multiplicative | 17.9 % |
| A051416 | Primes whose digits are composite; primes having only {4, 6, 8, 9} as digits | primes | 38.2 % |
| A051507 | Primes p such that p*q+2 is prime, where q is next prime after p | primes | 45.9 % |
| A051624 | 12-gonal (or dodecagonal) numbers: a(n) = n*(5*n-4) | polynomial | 100.0 % |
| A051634 | Strong primes: prime(k) > (prime(k-1) + prime(k+1))/2 | primes | 29.4 % |
| A051635 | Weak primes: prime(n) < (prime(n-1) + prime(n+1))/2 | primes | 29.9 % |
| A051645 | Primes p such that 30*p+1 is also prime | primes | 35.5 % |
| A051647 | Primes p such that 210*p + 1 is also prime | primes | 34.3 % |
| A051653 | Primes p such that 2310*p + 1 is also prime | primes | 34.8 % |
| A051654 | Primes p such that 30030*p + 1 is also prime | primes | 34.7 % |
| A051677 | Tetrahedron-tree numbers: a(n)=sum(b(m),m=1..n), b(m)=1, 1,3, 1,3,6, 1,3,6,10,..., 1,2,...,i*(i+1)2 | summatory | 69.4 % |
| A051682 | 11-gonal (or hendecagonal) numbers: a(n) = n*(9*n-7)/2 | polynomial | 100.0 % |
| A051750 | Primes whose cubes lack zeros | primes | 34.6 % |
| A051865 | 13-gonal (or tridecagonal) numbers: a(n) = n*(11*n - 9)/2 | polynomial | 100.0 % |
| A051866 | 14-gonal (or tetradecagonal) numbers: a(n) = n*(6*n-5) | polynomial | 100.0 % |
| A051867 | 15-gonal (or pentadecagonal) numbers: n*(13n-11)/2 | polynomial | 100.0 % |
| A051868 | 16-gonal (or hexadecagonal) numbers: a(n) = n*(7*n-6) | polynomial | 100.0 % |
| A051942 | a(n) = n*(n+1)/2 - 45 | polynomial | 100.0 % |
| A052018 | Numbers k with the property that the sum of the digits of k is a substring of k | digit rule | 20.5 % |
| A052026 | Composites base 10 that remain composite in all bases b, 2<=b<=10, expansions interpreted as decimal numbers | digit rule | 11.6 % |
| A052034 | Primes such that the sum of the squares of their digits is also a prime | primes | 35.9 % |
| A052040 | Numbers whose square is zeroless | digit rule | 12.2 % |
| A052042 | Primes that lack the digit zero in the decimal expansion of their squares | primes | 29.5 % |
| A052044 | Numbers k such that k^3 lacks the digit zero in its decimal expansion | digit rule | 15.7 % |
| A052214 | Numbers n with prime signature(n) = prime signature(n+1) = prime signature(n+2) | multiplicative | 42.4 % |
| A052223 | Numbers whose sum of digits is 9 | digit rule | 13.0 % |
| A052291 | Primes p such that 4p^2 + 1 is also prime | primes | 46.0 % |
| A052382 | Numbers without 0 in the decimal expansion, colloquial 'zeroless numbers' | digit rule | 10.5 % |
| A052383 | Numbers without 1 as a digit | digit rule | 9.3 % |
| A052404 | Numbers without 2 as a digit | digit rule | 10.4 % |
| A052405 | Numbers without 3 as a digit | digit rule | 8.1 % |
| A052406 | Numbers without 4 as a digit | digit rule | 10.5 % |
| A052413 | Numbers without 5 as a digit | digit rule | 9.6 % |
| A052414 | Numbers without 6 as a digit | digit rule | 13.1 % |
| A052419 | Numbers without 7 as a digit | digit rule | 11.9 % |
| A052421 | Numbers without 8 as a digit | digit rule | 8.0 % |
| A052485 | Weak numbers (i.e., not powerful (1)): there is a prime p where p|n is true but p^2|n is not true | multiplicative | 9.6 % |
| A052499 | If n is in the sequence then so are 2n and 4n-1 | self-referential | 11.6 % |
| A052905 | a(n) = (n^2 + 7*n + 2)/2 | polynomial | 100.0 % |
| A053176 | Primes p such that 2p+1 is composite | primes | 24.0 % |
| A053182 | Primes p such that p^2 + p + 1 is prime | primes | 50.4 % |
| A053184 | Primes p such that p^2+p-1 is prime | primes | 39.5 % |
| A053224 | Numbers k for which sigma(k) < sigma(k+1) | divisor functions | 16.0 % |
| A053432 | Numbers with digits in alphabetical order (in English) | digit rule | 15.7 % |
| A053580 | Primes having only {0, 6, 8, 9} as digits | primes | 38.7 % |
| A053696 | Numbers that can be represented as a string of three or more 1's in a base >= 2 | powers | 99.4 % |
| A053698 | a(n) = n^3 + n^2 + n + 1 | polynomial | 100.0 % |
| A053755 | a(n) = 4*n^2 + 1 | polynomial | 100.0 % |
| A053868 | Numbers whose sum of proper divisors is odd | divisor functions | 17.9 % |
| A054000 | a(n) = 2*n^2 - 2 | polynomial | 100.0 % |
| A054211 | Numbers k such that k concatenated with k-1 is prime | digit rule | 26.3 % |
| A054353 | Partial sums of Kolakoski sequence A000002 | summatory | 11.8 % |
| A054385 | Beatty sequence for e/(e-1); complement of A022843 | Beatty | 12.1 % |
| A054386 | Beatty sequence for Pi/(Pi-1); complement of A022844 | Beatty | 11.6 % |
| A054402 | Numbers that are the sum of a positive square and a positive cube in more than one way | powers | 46.0 % |
| A054552 | a(n) = 4*n^2 - 3*n + 1 | polynomial | 100.0 % |
| A054554 | a(n) = 4*n^2 - 10*n + 7 | polynomial | 100.0 % |
| A054556 | a(n) = 4*n^2 - 9*n + 6 | polynomial | 100.0 % |
| A054567 | a(n) = 4*n^2 - 7*n + 4 | polynomial | 100.0 % |
| A054569 | a(n) = 4*n^2 - 6*n + 3 | polynomial | 100.0 % |
| A054683 | Numbers whose sum of digits is even | digit rule | 10.1 % |
| A054684 | Numbers whose sum of digits is odd | digit rule | 11.0 % |
| A054741 | Numbers m such that totient(m) < cototient(m) | divisor functions | 10.2 % |
| A054753 | Numbers which are the product of a prime and the square of a different prime (p^2 * q) | multiplicative | 27.4 % |
| A054965 | Beatty sequence for log_3(10), i.e., for 1/log_10(3); so largest exponent of 3 which produces an n-digit decimal number | Beatty | 14.0 % |
| A054966 | Numbers that are congruent to {0, 1, 8} mod 9 | residue class | 16.0 % |
| A054967 | Numbers that are congruent to {0, 1, 9} mod 10 | residue class | 18.2 % |
| A055039 | Numbers of the form 2^(2i+1)*(8j+7) | residue class | 23.7 % |
| A055040 | Numbers of the form 3^(2i+1)*(3*j+2) | residue class | 19.4 % |
| A055048 | Numbers of the form 9^i*(3*j+2) | residue class | 19.4 % |
| A055112 | a(n) = n*(n+1)*(2*n+1) | polynomial | 100.0 % |
| A055393 | Sum of a square and a nonnegative cube in more than one way | powers | 45.8 % |
| A055437 | a(n) = 10*n^2+n | polynomial | 100.0 % |
| A055438 | a(n) = 100*n^2 + n | polynomial | 100.0 % |
| A055494 | Numbers k such that k^2 - k + 1 is prime | prime values | 25.0 % |
| A055638 | Numbers k for which sigma(k^2) is prime | divisor functions | 50.4 % |
| A055998 | a(n) = n*(n+5)/2 | polynomial | 100.0 % |
| A055999 | a(n) = n*(n + 7)/2 | polynomial | 100.0 % |
| A056000 | a(n) = n*(n+9)/2 | polynomial | 100.0 % |
| A056020 | Numbers that are congruent to +-1 mod 9 | residue class | 10.6 % |
| A056081 | Numbers that are congruent to {1, 26} mod 27 | residue class | 14.9 % |
| A056115 | a(n) = n*(n+11)/2 | polynomial | 100.0 % |
| A056119 | a(n) = n*(n+13)/2 | polynomial | 100.0 % |
| A056121 | a(n) = n*(n + 15)/2 | polynomial | 100.0 % |
| A056126 | a(n) = n*(n + 17)/2 | polynomial | 100.0 % |
| A056220 | a(n) = 2*n^2 - 1 | polynomial | 100.0 % |
| A056237 | a(n) = 2*n^2 + 9*n - 5 | polynomial | 100.0 % |
| A056520 | a(n) = (n + 2)*(2*n^2 - n + 3)/6 | polynomial | 100.0 % |
| A056524 | Palindromes with even number of digits | digit rule | 94.5 % |
| A056578 | a(n) = 1 + 2*n + 3*n^2 + 4*n^3 | polynomial | 100.0 % |
| A056709 | Naught-y primes, primes with noughts (or zeros) | primes | 25.4 % |
| A056809 | Numbers k such that k, k+1 and k+2 are products of two primes | multiplicative | 54.5 % |
| A056815 | Primes with prime "look and say" descriptions | primes | 43.0 % |
| A056867 | Nilpotent numbers: n such that every group of order n is nilpotent | multiplicative | 14.5 % |
| A056868 | Numbers that are not nilpotent numbers | multiplicative | 12.5 % |
| A056874 | Primes of form x^2+xy+3y^2, discriminant -11 | quadratic form | 30.5 % |
| A056899 | Primes of the form k^2 + 2 | primes | 100.0 % |
| A056905 | Primes of the form k^2 + 5 | primes | 100.0 % |
| A056906 | Numbers k such that 36*k^2 + 5 is prime | prime values | 21.1 % |
| A056908 | Numbers k such that 36*k^2 + 36*k + 13 is prime | prime values | 22.0 % |
| A056909 | Primes of the form k^2+6 | primes | 100.0 % |
| A057104 | The non-octal numbers: numbers containing an 8 or 9 (they cannot be mistaken for octal numbers) | digit rule | 9.5 % |
| A057165 | Indices of addition steps in Recamán's sequence A005132 | self-referential | 13.5 % |
| A057436 | Contains digits 1 through 6 only | digit rule | 11.5 % |
| A057604 | Primes of the form 4*k^2 + 163 | primes | 100.0 % |
| A057813 | a(n) = (2*n+1)*(4*n^2+4*n+3)/3 | polynomial | 100.0 % |
| A058331 | a(n) = 2*n^2 + 1 | polynomial | 100.0 % |
| A058369 | Numbers k such that k and k^2 have same digit sum | digit rule | 33.8 % |
| A059094 | Numbers whose sum of digits is a cube | digit rule | 11.1 % |
| A059100 | a(n) = n^2 + 2 | polynomial | 100.0 % |
| A059269 | Numbers m for which the number of divisors, tau(m), is divisible by 3 | divisor functions | 16.9 % |
| A059325 | Numbers n such that 6n + 5 is prime | prime values | 16.3 % |
| A059404 | Numbers with different exponents in their prime factorizations | multiplicative | 13.0 % |
| A059425 | Primes of form n^2 + 19n + 17 | primes | 100.0 % |
| A059456 | Unsafe primes: primes not in A005385 | primes | 23.5 % |
| A059531 | Beatty sequence for 1 + 1/Pi | Beatty | 11.0 % |
| A059532 | Beatty sequence for 1 + Pi | Beatty | 18.4 % |
| A059535 | Beatty sequence for Pi^2/6, or zeta(2) | Beatty | 12.4 % |
| A059536 | Beatty sequence for zeta(2)/(zeta(2)-1) | Beatty | 15.2 % |
| A059537 | Beatty sequence for zeta(3) | Beatty | 10.5 % |
| A059538 | Beatty sequence for zeta(3)/(zeta(3)-1) | Beatty | 21.3 % |
| A059539 | Beatty sequence for 3^(1/3) | Beatty | 11.5 % |
| A059540 | Beatty sequence for 3^(1/3)/(3^(1/3)-1) | Beatty | 17.1 % |
| A059541 | Beatty sequence for 1 + log(2) | Beatty | 12.4 % |
| A059542 | Beatty sequence for 1 + 1/log(2) | Beatty | 15.0 % |
| A059543 | Beatty sequence for log(3) | Beatty | 10.0 % |
| A059544 | Beatty sequence for log(3)/(log(3)-1) | Beatty | 25.7 % |
| A059545 | Beatty sequence for log(10) | Beatty | 14.7 % |
| A059546 | Beatty sequence for log(10)/(log(10)-1) | Beatty | 12.9 % |
| A059547 | Beatty sequence for 1 + 1/log(3) | Beatty | 13.4 % |
| A059548 | Beatty sequence for 1 + log(3) | Beatty | 14.0 % |
| A059549 | Beatty sequence for 1 + 1/log(10) | Beatty | 11.6 % |
| A059550 | Beatty sequence for 1 + log(10) | Beatty | 17.2 % |
| A059551 | Beatty sequence for Gamma(1/3) | Beatty | 15.6 % |
| A059552 | Beatty sequence for Gamma(1/3)/(Gamma(1/3)-1) | Beatty | 12.1 % |
| A059553 | Beatty sequence for Gamma(2/3) | Beatty | 11.0 % |
| A059554 | Beatty sequence for Gamma(2/3)/(Gamma(2/3)-1) | Beatty | 18.1 % |
| A059556 | Beatty sequence for 1 + 1/gamma | Beatty | 15.8 % |
| A059557 | Beatty sequence for 1 + gamma^2, (gamma is the Euler-Mascheroni constant A001620) | Beatty | 11.1 % |
| A059559 | Beatty sequence for 1 + log(1/gamma), (gamma is the Euler-Mascheroni constant A001620) | Beatty | 11.9 % |
| A059560 | Beatty sequence for 1 - 1/log(gamma) | Beatty | 15.9 % |
| A059562 | Beatty sequence for log(Pi)/(log(Pi)-1) | Beatty | 23.3 % |
| A059563 | Beatty sequence for e + 1/e | Beatty | 16.8 % |
| A059564 | Beatty sequence for (e^2 + 1)/(e^2 - e + 1) | Beatty | 11.8 % |
| A059566 | Beatty sequence for e^gamma/(e^gamma-1) | Beatty | 14.5 % |
| A059567 | Beatty sequence for 1 - log(log(2)) | Beatty | 11.3 % |
| A059568 | Beatty sequence for 1 - 1/log(log(2)) | Beatty | 17.9 % |
| A059708 | Numbers k such that all digits have same parity | digit rule | 15.5 % |
| A059722 | a(n) = n*(2*n^2 - 2*n + 1) | polynomial | 100.0 % |
| A059845 | a(n) = n*(3*n + 11)/2 | polynomial | 100.0 % |
| A060163 | a(n) = (n^3 + 5*n + 18)/6 | polynomial | 100.0 % |
| A060254 | Primes which are the sum of two consecutive composite numbers | primes | 23.9 % |
| A060544 | Centered 9-gonal (also known as nonagonal or enneagonal) numbers. Every third triangular number, starting with a(1)=1 | polynomial | 100.0 % |
| A060785 | a(n) = 3*(n - 2)*(5*n -11) | polynomial | 100.0 % |
| A060787 | a(n) = 18*(n - 2)*(2*n - 5) | polynomial | 100.0 % |
| A060820 | a(n) = (2*n-1)^2 + (2*n)^2 | polynomial | 100.0 % |
| A060834 | a(n) = 6*n^2 + 6*n + 31 | polynomial | 100.0 % |
| A060844 | Primes of the form 6*k^2 + 6*k + 31 | primes | 100.0 % |
| A060874 | Intrinsic 4-palindromes: n is an intrinsic k-palindrome if it is a k-digit palindrome in some base | digit rule | 29.2 % |
| A060879 | Intrinsic 9-palindromes: n is an intrinsic k-palindrome if it is a k-digit palindrome in some base | digit rule | 59.9 % |
| A060947 | Intrinsic 10-palindromes: n is an intrinsic k-palindrome if it is a k-digit palindrome in some base | digit rule | 82.3 % |
| A061241 | Prime numbers == 7 (mod 9) | primes | 42.7 % |
| A061242 | Primes of the form 9*k - 1 | primes | 42.7 % |
| A061246 | Prime having only {0, 1, 4, 9} as digits | primes | 35.5 % |
| A061247 | Primes having only {0, 1, 8} as digits | primes | 40.2 % |
| A061346 | Odd numbers that are neither primes nor prime powers | multiplicative | 21.0 % |
| A061372 | Primes having only 0,4,6,8,9 as digits | primes | 39.1 % |
| A061384 | Numbers n such that sum of digits = number of digits | digit rule | 23.8 % |
| A061426 | Geometric mean of the digits = 2. In other words, the product of the digits is = 2^k where k is the number of digits | digit rule | 26.9 % |
| A061550 | a(n) = (2*n+1)*(2*n+3)*(2*n+5) | polynomial | 100.0 % |
| A061673 | Even numbers k such that k+1 and k-1 are both composite | complement | 11.1 % |
| A061681 | a(0)=1; a(n) = a(n-1) + lead(a(n-1)) for n > 0 where for an integer x lead(x) is the leading digit in base 10 | self-referential | 10.4 % |
| A061722 | a(n) = 10*n^2 + 7 | polynomial | 100.0 % |
| A061779 | Primes p such that q-p = 22, where q is the next prime after p | primes | 54.1 % |
| A061792 | a(n) = 49*(n*(n+1)/2) + 6 | polynomial | 100.0 % |
| A061793 | a(n) = 25*n*(n + 1)/2 + 3 | polynomial | 100.0 % |
| A061804 | a(n) = 2*n*(2*n^2 + 1) | polynomial | 100.0 % |
| A062025 | a(n) = n*(13*n^2 - 7)/6 | polynomial | 100.0 % |
| A062123 | a(n) = (9n^2 + 9n + 4)/2 | polynomial | 100.0 % |
| A062284 | Primes p such that p + 50 is also prime | primes | 45.0 % |
| A062324 | Primes p such that p^2 + 4 is also prime | primes | 45.9 % |
| A062326 | Primes p such that p^2 - 2 is also prime | primes | 39.8 % |
| A062336 | Primes whose sum of digits is a multiple of 7 | primes | 39.1 % |
| A062338 | Primes whose sum of digits is a multiple of 4 | primes | 34.0 % |
| A062340 | Primes whose sum of digits is a multiple of 5 | primes | 35.0 % |
| A062350 | Primes having only {1, 2, 3} as digits | primes | 29.9 % |
| A062503 | Squarefree numbers squared | multiplicative | 100.0 % |
| A062634 | Numbers k such that every divisor of k contains the digit 1 | divisor functions | 23.2 % |
| A062713 | Numbers k such that the sum of the digits of k is a prime factor of k | digit rule | 33.5 % |
| A062721 | Numbers k such that k is a product of two primes and k-2 is prime | multiplicative | 40.2 % |
| A062737 | Primes p such that 4p-1 is also prime | primes | 47.8 % |
| A062783 | a(n) = 3*n*(4*n-1) | polynomial | 100.0 % |
| A062786 | Centered 10-gonal numbers | polynomial | 100.0 % |
| A062800 | Primes of form 100*k + 1 | primes | 53.1 % |
| A062832 | Numbers k such that k and k+2 have the same number of divisors | multiplicative | 22.1 % |
| A062996 | Numbers whose sum of digits is greater than or equal to its product of digits | digit rule | 8.9 % |
| A062997 | Numbers whose sum of digits is strictly greater than its product of digits | digit rule | 8.9 % |
| A062998 | Numbers whose sum of digits is less than or equal to its product of digits | digit rule | 10.5 % |
| A063037 | Numbers without 3 consecutive equal binary digits | binary rule | 10.2 % |
| A063464 | Numbers k such that omega(k) = omega(k+2), where omega(k) is the number of distinct prime divisors of k | multiplicative | 14.7 % |
| A063465 | Number k such that omega(k) = omega(k+3), where omega(k) is the number of distinct prime divisors of k | multiplicative | 16.6 % |
| A063472 | Primes of the form 666*k - 1 | primes | 68.9 % |
| A063488 | a(n) = (2*n-1)*(n^2 -n +2)/2 | polynomial | 100.0 % |
| A063489 | a(n) = (2*n-1)*(5*n^2-5*n+6)/6 | polynomial | 100.0 % |
| A063490 | a(n) = (2*n - 1)*(7*n^2 - 7*n + 6)/6 | polynomial | 100.0 % |
| A063491 | a(n) = (2*n - 1)*(3*n^2 - 3*n + 2)/2 | polynomial | 100.0 % |
| A063492 | a(n) = (2*n - 1)*(11*n^2 - 11*n + 6)/6 | polynomial | 100.0 % |
| A063493 | a(n) = (2*n-1)*(13*n^2-13*n+6)/6 | polynomial | 100.0 % |
| A063494 | a(n) = (2*n - 1)*(7*n^2 - 7*n + 3)/3 | polynomial | 100.0 % |
| A063495 | a(n) = (2*n-1)*(5*n^2-5*n+2)/2 | polynomial | 100.0 % |
| A063496 | a(n) = (2*n - 1)*(8*n^2 - 8*n + 3)/3 | polynomial | 100.0 % |
| A063521 | a(n) = n*(7*n^2-4)/3 | polynomial | 100.0 % |
| A063522 | a(n) = n*(5*n^2 - 3)/2 | polynomial | 100.0 % |
| A063523 | a(n) = n*(8*n^2 - 5)/3 | polynomial | 100.0 % |
| A063637 | Primes p such that p+2 is a semiprime | primes | 36.0 % |
| A063638 | Primes p such that p-2 is a semiprime | primes | 34.8 % |
| A063909 | Primes p such that 2*p - 5 is also prime | primes | 45.3 % |
| A063910 | Primes p such that 2*p - 7 is also prime | primes | 45.8 % |
| A063911 | Primes p such that 2*p - 9 is also prime | primes | 36.3 % |
| A063912 | Primes p such that 2*p - 11 is also prime | primes | 46.9 % |
| A063913 | Primes p such that 2*p - 13 is also prime | primes | 47.1 % |
| A064052 | Not sqrt(n)-smooth: some prime factor of n is > sqrt(n) | smooth | 9.5 % |
| A064150 | Numbers divisible by the sum of their ternary digits | digit rule | 19.7 % |
| A064194 | a(2n) = 3*a(n), a(2n+1) = 2*a(n+1)+a(n), with a(1) = 1 | self-referential | 56.7 % |
| A064225 | a(n) = (9*n^2 + 5*n + 2)/2 | polynomial | 100.0 % |
| A064226 | a(n) = (9*n^2 + 13*n + 6)/2 | polynomial | 100.0 % |
| A064437 | a(1)=1, a(n) = a(n-1) + 3 if n is already in the sequence, a(n) = a(n-1) + 2 otherwise | self-referential | 15.0 % |
| A064481 | Numbers which are divisible by the sum of their base-5 digits | digit rule | 18.6 % |
| A064608 | Partial sums of A034444: sum of number of unitary divisors from 1 to n | summatory | 26.4 % |
| A064700 | Numbers k that are divisible by the multiplicative digital root of k | digit rule | 20.7 % |
| A064761 | a(n) = 15*n^2 | polynomial | 100.0 % |
| A064762 | a(n) = 21*n^2 | polynomial | 100.0 % |
| A064763 | a(n) = 28*n^2 | polynomial | 100.0 % |
| A065496 | Numbers n such that sigma(n) is a nontrivial power, i.e., sigma(n) = a^b where a and b are greater than 1 | divisor functions | 44.3 % |
| A065508 | Primes p such that p^2 - p + 1 is prime | primes | 50.3 % |
| A065877 | Non-Niven (or non-Harshad) numbers: numbers which are not a multiple of the sum of their digits | digit rule | 8.3 % |
| A066031 | Composite numbers n the sum of whose prime factors divides n, but which are not themselves powers of primes | multiplicative | 36.1 % |
| A066049 | Numbers k such that 2*k^2 - 1 is a prime | prime values | 20.8 % |
| A066343 | Beatty sequence for log_2(10) | Beatty | 17.1 % |
| A066344 | Beatty sequence for log_5(10) | Beatty | 11.4 % |
| A066436 | Primes of the form 2*n^2 - 1 | primes | 100.0 % |
| A066649 | Primes of the form a^2 + b^3 with a, b > 0 | primes | 46.1 % |
| A066938 | Primes of the form p*q+p+q, where p and q are primes | primes | 38.2 % |
| A067076 | Numbers k such that 2*k + 3 is a prime | prime values | 16.0 % |
| A067201 | Numbers k such that k^2 + 2 is prime | prime values | 28.9 % |
| A067251 | Numbers with no trailing zeros in decimal representation | residue class | 10.6 % |
| A067256 | Numbers k such that k, 2*k+1, 3*k+2 are primes | primes | 64.3 % |
| A067259 | Cubefree numbers which are not squarefree | multiplicative | 17.9 % |
| A067389 | a(n) = 3*n^3 + 2*n^2 + n | polynomial | 100.0 % |
| A067611 | Numbers of the form 6xy +- x +- y, where x, y are positive integers | complement | 9.5 % |
| A067705 | a(n) = 11*n^2 + 22*n | polynomial | 100.0 % |
| A067707 | a(n) = 3*n^2 + 12*n | polynomial | 100.0 % |
| A067724 | a(n) = 5*n^2 + 10*n | polynomial | 100.0 % |
| A067725 | a(n) = 3*n^2 + 6*n | polynomial | 100.0 % |
| A067726 | a(n) = 6*n^2 + 12*n | polynomial | 100.0 % |
| A067727 | a(n) = 7*n^2 + 14*n | polynomial | 100.0 % |
| A067728 | a(n) = 2*n^2 + 8*n | polynomial | 100.0 % |
| A067885 | Products of exactly 6 distinct primes | multiplicative | 29.5 % |
| A067889 | Primes sandwiched between two numbers having same number of divisors | primes | 44.1 % |
| A068228 | Primes congruent to 1 (mod 12) | primes | 40.2 % |
| A068229 | Primes congruent to 7 (mod 12) | primes | 40.2 % |
| A068231 | Primes congruent to 11 mod 12 | primes | 40.0 % |
| A068601 | a(n) = n^3 - 1 | polynomial | 100.0 % |
| A068780 | Composite numbers n such that n+1 is also composite | complement | 11.2 % |
| A068781 | Lesser of two consecutive numbers each divisible by a square | multiplicative | 24.9 % |
| A069059 | Numbers k such that k and sigma(k) are not relatively prime | divisor functions | 12.6 % |
| A069072 | a(n) = (2n+1)*(2n+2)*(2n+3) | polynomial | 100.0 % |
| A069099 | Centered heptagonal numbers | polynomial | 100.0 % |
| A069125 | a(n) = (11*n^2 - 11*n + 2)/2 | polynomial | 100.0 % |
| A069272 | 11-almost primes (generalization of semiprimes) | multiplicative | 22.5 % |
| A069273 | 12-almost primes (generalization of semiprimes) | multiplicative | 23.3 % |
| A069274 | 13-almost primes (generalization of semiprimes) | multiplicative | 24.6 % |
| A069346 | Primes of the form n - Omega(n), where Omega(n) is the number of prime factors of n, A001222(n) | primes | 26.7 % |
| A069477 | a(n) = 60*n^2 + 180*n + 150 | polynomial | 100.0 % |
| A069977 | Numbers k such that k and k+2 are squarefree | multiplicative | 19.6 % |
| A070552 | Semiprimes k such that k+1 is also a semiprime | multiplicative | 31.9 % |
| A070938 | Harshad numbers which terminate in their digital sum | digit rule | 25.3 % |
| A071139 | Numbers k such that the sum of distinct primes dividing k is divisible by the largest prime dividing k | multiplicative | 23.1 % |
| A071229 | a(n) = n*(14*n^2 - 21*n + 13)/6 | polynomial | 100.0 % |
| A071230 | a(n) = n*(6*n^2 - 7*n + 3)/2 | polynomial | 100.0 % |
| A071233 | a(n) = 2*(n-1)*(n^2 + 1) | polynomial | 100.0 % |
| A071355 | a(n) = 2*n^2 + 11*n + 12 | polynomial | 100.0 % |
| A071395 | Primitive abundant numbers (abundant numbers all of whose proper divisors are deficient numbers) | divisor functions | 53.8 % |
| A071403 | Which squarefree number is prime? a(n)-th squarefree number equals n-th prime | primes | 21.2 % |
| A071696 | Greater members of twin prime pairs of form (4*k+1,4*k+3), k>0 | primes | 51.7 % |
| A071698 | Lesser members of twin prime pairs of form (4*k+3, 4*k+5), k >= 0 | primes | 52.3 % |
| A072055 | a(n) = 2*prime(n)+1 | primes | 34.6 % |
| A072202 | Same numbers of prime factors of forms 4*k+1 and 4*k+3, counted with multiplicity | multiplicative | 16.0 % |
| A072225 | Numbers k such that prime(k) + prime(k+1) + prime(k+2) is prime | primes | 19.0 % |
| A072437 | Numbers with no prime factors of form 4*k+3 | multiplicative | 15.7 % |
| A072587 | Numbers having at least one prime factor with an even exponent | multiplicative | 15.8 % |
| A072682 | Numbers congruent to {3, 36, 54, 57} mod 60 | residue class | 23.1 % |
| A072774 | Powers of squarefree numbers | powers | 10.7 % |
| A072833 | Numbers that are congruent to 0, 5, 8, 9 mod 12 | residue class | 21.4 % |
| A072859 | Primes p for which the period of 1/p is prime | primes | 47.8 % |
| A072960 | Numbers using only the curved digits 0, 3, 6, 8 and 9 | digit rule | 13.0 % |
| A072961 | Numbers using only the digits 2 and 5, that are both curved and straight | digit rule | 15.2 % |
| A072978 | Numbers of the form m * 2^bigomega(m), where m>1 is odd and bigomega(m) = A001222(m), the number of prime factors of m | multiplicative | 14.0 % |
| A073085 | Numbers k such that 210*k+1 is prime | prime values | 16.3 % |
| A073102 | Primes of the form 210n + 1 | primes | 62.8 % |
| A073121 | a(n) = r*a(ceiling(n/2)) + s*a(floor(n/2)) with a(1)=1 and (r,s)=(2,2) | self-referential | 100.0 % |
| A073247 | Squarefree numbers k such that k-1 and k+1 are not squarefree | multiplicative | 20.4 % |
| A073492 | Numbers having at least one prime gap in their factorization | multiplicative | 10.5 % |
| A073493 | Numbers having exactly one prime gap in their factorization | multiplicative | 14.2 % |
| A073577 | a(n) = 4*n^2 + 4*n - 1 | polynomial | 100.0 % |
| A074627 | Numbers n such that sigma(n) is divisible by 6 | divisor functions | 9.2 % |
| A074741 | Sum of squares of gaps between consecutive primes | summatory | 43.0 % |
| A074742 | a(n) = (n^3 + 6n^2 - n + 12)/6 | polynomial | 100.0 % |
| A074822 | Primes p such that p + 4 is prime and p == 9 (mod 10) | primes | 57.9 % |
| A074832 | Primes whose binary reversal is also prime | primes | 34.7 % |
| A074940 | Numbers having at least one 2 in their ternary representation | digit rule | 9.7 % |
| A074969 | Numbers with six distinct prime divisors | multiplicative | 22.8 % |
| A075109 | Odd perfect powers (1 together with numbers m^k, m odd, k >= 2) | powers | 99.7 % |
| A075432 | Primes with no squarefree neighbors | primes | 33.6 % |
| A075592 | Numbers n such that number of distinct prime divisors of n is a divisor of n | multiplicative | 13.5 % |
| A075745 | Numbers n such that 210*n + 13 is prime | prime values | 16.0 % |
| A075746 | Numbers n such that 210*n-13 is prime | prime values | 16.6 % |
| A075747 | Numbers n such that 210*n + 17 is prime | prime values | 16.4 % |
| A075748 | Numbers k such that 210*k-17 is prime | prime values | 16.7 % |
| A076056 | Primes which when read backwards are composite numbers | primes | 24.5 % |
| A076339 | Primes of the form 512*k+1 | primes | 64.2 % |
| A076354 | Numbers n such that 210*n-1 is prime | prime values | 16.5 % |
| A076355 | Numbers n such that 210*n + 11 is prime | prime values | 16.7 % |
| A076356 | Numbers n such that 210*n-11 is prime | prime values | 15.5 % |
| A076727 | Primes of the form x^2 + (x+3)^2 | primes | 100.0 % |
| A077064 | Squarefree numbers of form prime - 1 | primes | 33.0 % |
| A077068 | Semiprimes of the form prime + 1 | primes | 47.8 % |
| A077414 | a(n) = n*(n - 1)*(n + 2)/2 | polynomial | 100.0 % |
| A077415 | a(n) = n*(n+2)*(n-2)/3 | polynomial | 100.0 % |
| A077436 | Let B(n) be the sum of binary digits of n. This sequence contains n such that B(n) = B(n^2) | binary rule | 28.5 % |
| A077477 | Least positive integers not excluded by the rule that if n is present then 2n+1 and 3n+1 are not allowed | self-referential | 14.4 % |
| A077654 | Composites k such that 2k+1 is also composite | complement | 10.8 % |
| A077717 | Primes which can be expressed as a sum of distinct powers of 3 | primes | 38.1 % |
| A078309 | Numbers that are congruent to {1, 4, 7} mod 10 | residue class | 23.4 % |
| A078358 | Non-oblong numbers: Complement of A002378 | complement | 9.5 % |
| A078370 | a(n) = 4*(n+1)*n + 5 | polynomial | 100.0 % |
| A078371 | a(n) = (2*n+5)*(2*n+1) | polynomial | 100.0 % |
| A078402 | Numbers k such that k^2 + 5 is prime | prime values | 21.1 % |
| A078494 | Primes occurring only once in their decade | primes | 27.1 % |
| A078633 | Smallest number of sticks of length 1 needed to construct n squares with sides of length 1 | polynomial | 13.8 % |
| A078649 | Numbers n such that A000002(n)=A000002(n+1) where A000002 is the Kolakoski sequence | self-referential | 16.2 % |
| A078972 | Brilliant numbers: semiprimes (products of two primes, A001358) whose prime factors have the same number of decimal digits | multiplicative | 35.1 % |
| A079138 | Primes of the form k^2 + 7 | primes | 100.0 % |
| A079498 | Numbers whose sum of digits in base b gives 0 (mod b), for b = 3 | digit rule | 16.2 % |
| A079523 | Utterly odd numbers: numbers whose binary representation ends in an odd number of ones | binary rule | 20.6 % |
| A079545 | Primes of the form x^2 + y^2 + 1 with x,y >= 0 | primes | 38.5 % |
| A079588 | a(n) = (n+1)*(2*n+1)*(4*n+1) | polynomial | 100.0 % |
| A079651 | Primes having only {1, 4, 7} as digits | primes | 33.5 % |
| A079652 | Prime numbers using only the curved digits 0, 3, 6, 8 and 9 | primes | 32.6 % |
| A080075 | Proth numbers: of the form k*2^m + 1 for k odd, m >= 1 and 2^m > k | powers | 100.0 % |
| A080147 | Positions of primes of the form 4*k+1 (A002144) among all primes (A000040) | primes | 13.0 % |
| A080197 | 13-smooth numbers: numbers whose prime divisors are all <= 13 | smooth | 93.1 % |
| A080228 | Numbers containing the digits 0, 1, 2, 5 or 8 only | digit rule | 14.6 % |
| A080663 | a(n) = 3*n^2 - 1 | polynomial | 100.0 % |
| A080681 | 17-smooth numbers: numbers whose prime divisors are all <= 17 | smooth | 79.2 % |
| A080682 | 19-smooth numbers: numbers whose prime divisors are all <= 19 | smooth | 55.6 % |
| A080683 | 23-smooth numbers: numbers whose prime divisors are all <= 23 | smooth | 41.5 % |
| A080855 | a(n) = (9*n^2 - 3*n + 2)/2 | polynomial | 100.0 % |
| A080857 | a(n) = (25*n^2 - 15*n + 2)/2 | polynomial | 100.0 % |
| A080859 | a(n) = 6*n^2 + 4*n + 1 | polynomial | 100.0 % |
| A080860 | a(n) = 10*n^2 + 5*n + 1 | polynomial | 100.0 % |
| A080861 | a(n) = 15*n^2 + 6*n + 1 | polynomial | 100.0 % |
| A081092 | Primes having a prime number of 1's in their binary representation | primes | 31.4 % |
| A081311 | Numbers that can be written as sum of a prime and an 3-smooth number | smooth | 10.9 % |
| A081330 | Numbers that can be written as sum of two 3-smooth numbers | smooth | 61.6 % |
| A081605 | Numbers having at least one 0 in their ternary representation | digit rule | 9.6 % |
| A081759 | Numbers k such that 5*k+6 is prime | prime values | 24.5 % |
| A082040 | a(n) = 9*n^2 + 3*n + 1 | polynomial | 100.0 % |
| A082041 | a(n) = 16*n^2 + 4*n + 1 | polynomial | 100.0 % |
| A082108 | a(n) = 4*n^2 + 6*n + 1 | polynomial | 100.0 % |
| A082111 | a(n) = n^2 + 5*n + 1 | polynomial | 100.0 % |
| A082112 | a(n) = 4*n^2 + 10*n + 1 | polynomial | 100.0 % |
| A082246 | Primes that are the sum of 7 consecutive primes | primes | 52.4 % |
| A082369 | Numbers congruent to 13 mod 30 | residue class | 43.7 % |
| A082885 | Primes followed by a larger-than-average prime gap | primes | 33.7 % |
| A082977 | Numbers that are congruent to {0, 1, 3, 5, 6, 8, 10} mod 12 | residue class | 11.7 % |
| A083022 | Numbers n such that 4*n^2 - 3 is prime | prime values | 18.9 % |
| A083026 | Numbers that are congruent to {0, 2, 4, 5, 7, 9, 11} mod 12 | residue class | 12.0 % |
| A083028 | Numbers that are congruent to {0, 2, 3, 5, 7, 8, 11} mod 12 | residue class | 15.8 % |
| A083030 | Numbers that are congruent to {0, 4, 7} mod 12 | residue class | 22.2 % |
| A083031 | Numbers that are congruent to {0, 3, 7} mod 12 | residue class | 23.7 % |
| A083032 | Numbers that are congruent to {0, 4, 7, 10} mod 12 | residue class | 10.2 % |
| A083033 | Numbers that are congruent to {0, 2, 3, 5, 7, 9, 10} mod 12 | residue class | 15.8 % |
| A083034 | Numbers that are congruent to {0, 1, 3, 5, 7, 8, 10} mod 12 | residue class | 11.7 % |
| A083089 | Numbers that are congruent to {0, 2, 4, 6, 7, 9, 11} mod 12 | residue class | 20.1 % |
| A083120 | Numbers that are congruent to {0, 2, 4, 5, 7, 9, 10} mod 12 | residue class | 8.1 % |
| A084367 | a(n) = n*(2*n+1)^2 | polynomial | 100.0 % |
| A084377 | a(n) = n^3 + 7 | polynomial | 100.0 % |
| A084378 | a(n) = n^3 + 3 | polynomial | 100.0 % |
| A084379 | a(n) = n^3 + 17 | polynomial | 100.0 % |
| A084380 | a(n) = n^3 + 2 | polynomial | 100.0 % |
| A084381 | a(n) = n^3 + 5 | polynomial | 100.0 % |
| A084382 | a(n) = n^3 + 6 | polynomial | 100.0 % |
| A084544 | Alternate number system in base 4 | digit rule | 11.2 % |
| A084545 | Alternate number system in base 5 | digit rule | 12.9 % |
| A084849 | a(n) = 1 + n + 2*n^2 | polynomial | 100.0 % |
| A084865 | Primes of the form 2x^2 + 3y^2 | quadratic form | 39.5 % |
| A084969 | Numbers whose smallest prime factor is 11 | multiplicative | 14.8 % |
| A084970 | Numbers whose smallest prime factor is 13 | multiplicative | 15.6 % |
| A084984 | Numbers containing no prime digits | digit rule | 15.2 % |
| A084990 | a(n) = n*(n^2+3*n-1)/3 | polynomial | 100.0 % |
| A085001 | a(n) = (3*n+1)*(3*n+4) | polynomial | 100.0 % |
| A085025 | a(n) = (5*n+1)*(5*n+6) | polynomial | 100.0 % |
| A085026 | a(n) = (6*n+1)*(6*n+7) | polynomial | 100.0 % |
| A085027 | a(n) = (4*n+3)*(4*n+7) | polynomial | 100.0 % |
| A085036 | a(n) = (5*n+2)*(5*n+7) | polynomial | 100.0 % |
| A085370 | Niven (or Harshad) numbers that are not divisible by 3 | digit rule | 23.6 % |
| A085371 | Non-Niven (or non-Harshad) numbers that are divisible by 3 | digit rule | 8.3 % |
| A085473 | a(n) = 6*n^2 + 3*n + 1 | polynomial | 100.0 % |
| A085722 | Numbers k such that k^2 + 1 is a semiprime | multiplicative | 16.7 % |
| A085746 | Numbers n such that n^2 + n + 1 is a semiprime | multiplicative | 17.2 % |
| A085780 | Numbers that are a product of 2 triangular numbers | polynomial | 42.2 % |
| A085786 | a(n) = n*(2*n^2 + n + 1)/2 | polynomial | 100.0 % |
| A085802 | Numbers whose sum of digits is a semiprime | digit rule | 13.7 % |
| A085959 | Multiples of 37 | residue class | 9.7 % |
| A086005 | Semiprimes sandwiched between semiprimes | multiplicative | 50.0 % |
| A086006 | Primes p such that 2*p-1 and 2*p+1 are semiprimes | primes | 49.8 % |
| A086285 | Numbers k such that 1 + 2k + 3k^2 is prime | prime values | 24.0 % |
| A086298 | Numbers n such that 1-2n+3n^2 is prime | prime values | 23.7 % |
| A086303 | Numbers n such that n+15 is prime | prime values | 14.9 % |
| A086304 | Numbers n such that n+6 is prime | prime values | 25.6 % |
| A086381 | Numbers k such that p=k^2+2 and p+2 are primes | prime values | 47.0 % |
| A086605 | a(n) = 9*n^3 - 18*n^2 + 10*n | polynomial | 100.0 % |
| A086760 | a(n) = 8*n^2 + 88*n + 43 | polynomial | 100.0 % |
| A087057 | Smallest number whose square is larger than 2*n^2 | Beatty | 11.3 % |
| A087248 | Squarefree abundant numbers | divisor functions | 15.0 % |
| A087348 | a(n) = 10*n^2 - 6*n + 1 | polynomial | 100.0 % |
| A087363 | Primes having only {3, 5, 7} as digits | primes | 34.5 % |
| A087370 | Numbers n such that 3n - 1 is a prime | prime values | 18.1 % |
| A087444 | Numbers that are congruent to {1, 4} mod 9 | residue class | 22.5 % |
| A087446 | Numbers that are congruent to {1, 6} mod 15 | residue class | 29.7 % |
| A087475 | a(n) = n^2 + 4 | polynomial | 100.0 % |
| A087505 | Numbers k such that 5*k+3 is a prime | prime values | 15.9 % |
| A087695 | Numbers n such that n + 3 and n - 3 are both prime | prime values | 30.0 % |
| A087863 | a(n) = (n^3 + 24*n^2 + 65*n + 36)/6 | polynomial | 100.0 % |
| A088179 | Primes p such that mu(p-1) = 1; that is, p-1 is squarefree and has an even number of prime factors, where mu is the Moebius function | primes | 35.3 % |
| A088485 | Numbers n such that n^2 + n - 1 and n^2 + n + 1 are twin primes | prime values | 38.6 % |
| A088572 | Numbers n such that (2n+1)^2 - 2 is prime | prime values | 20.6 % |
| A088723 | Numbers k with at least one divisor d>1 such that d+1 also divides k | divisor functions | 14.5 % |
| A088758 | Numbers k such that (4*k + 1)^2 + (4*k + 2)^2 is prime | prime values | 22.1 % |
| A088759 | Numbers k such that (4*k+3)^2 + (4*k+2)^2 is prime | prime values | 23.8 % |
| A088955 | Primes of the form 60*k + 1 | primes | 52.6 % |
| A088958 | Numbers n such that 60*n+1 is prime | prime values | 17.0 % |
| A088967 | Numbers n such that n+9 is a prime | prime values | 17.2 % |
| A089001 | Numbers k such that 2*k^2 + 1 is prime | prime values | 19.5 % |
| A089008 | Numbers k such that 18*k^2 + 1 is prime | prime values | 19.5 % |
| A089033 | Numbers n such that 7*n+3 is prime | prime values | 16.4 % |
| A089063 | Numbers k such that 840*k + 175177943 is a prime | prime values | 17.2 % |
| A089079 | Numbers n such that 7*n - 23 is prime | prime values | 22.2 % |
| A089189 | Primes p such that p-1 is cubefree | primes | 25.4 % |
| A089192 | Numbers n such that 2n - 7 is a prime | prime values | 21.2 % |
| A089194 | Primes p such that p-1 and p+1 are cube- or higher power-free | primes | 29.1 % |
| A089207 | a(n) = 4*n^3 + 2*n^2 | polynomial | 100.0 % |
| A089253 | Numbers n such that 2n - 5 is a prime | prime values | 20.0 % |
| A089352 | Numbers that are divisible by the sum of their distinct prime factors (A008472) | multiplicative | 23.4 % |
| A089373 | Numbers k such that k^2 - 7*k + 7 is prime | prime values | 25.4 % |
| A089376 | Primes of the form k^2 - 7*k + 7 | primes | 100.0 % |
| A089438 | Primes p such that 6p+11 is also a prime | primes | 36.8 % |
| A089441 | Primes p such that 16*p+17 is a prime | primes | 48.3 % |
| A089443 | Primes p such that 12*p + 13 is prime | primes | 36.9 % |
| A089593 | Numbers k such that k^2 + 2k + 2 is prime | prime values | 31.4 % |
| A089623 | Numbers n such that n^2 + 2n - 1 is prime | prime values | 20.6 % |
| A089681 | Numbers n such that 3n^2 - 1 is prime | prime values | 19.7 % |
| A089682 | Primes of the form 3*m^2 - 1 | primes | 100.0 % |
| A089747 | Numbers n such that n^2 - 2n + 5 is prime | prime values | 21.6 % |
| A089953 | Numbers n such that 3*n+7 is prime | prime values | 17.2 % |
| A090050 | Numbers having equal length of longest contiguous block of zeros and ones in binary expansion | binary rule | 14.0 % |
| A090187 | Primes of the form 11*n+2 | primes | 41.8 % |
| A090190 | Symmetric primes: an odd prime p is symmetric if there exists an odd prime q such that |p-q| = gcd(p-1,q-1) | primes | 23.8 % |
| A090191 | Asymmetric primes: an odd prime p is asymmetric if there is no odd prime q such that |p-q|=gcd(p-1,q-1) | primes | 38.6 % |
| A090197 | a(n) = n^3 + 6*n^2 + 6*n + 1 | polynomial | 100.0 % |
| A090288 | a(n) = 2*n^2 + 6*n + 2 | polynomial | 100.0 % |
| A090421 | Numbers that can be written in binary representation as concatenation of primes | binary rule | 14.3 % |
| A090423 | Primes that can be written in binary representation as concatenation of other primes | primes | 25.2 % |
| A090466 | Regular figurative or polygonal numbers of order greater than 2 | polynomial | 11.5 % |
| A090562 | Primes of the form 5k^2 + 5k + 1 | primes | 100.0 % |
| A090563 | Numbers k such that 5*k^2 + 5*k + 1 is prime | prime values | 19.1 % |
| A090570 | Numbers that are congruent to {0, 1} mod 9 | residue class | 21.2 % |
| A090614 | Numbers n such that 14n+3 is prime | prime values | 16.4 % |
| A090684 | Primes of the form 8*k^2 - 1 | primes | 100.0 % |
| A090685 | Primes of the form 8*k^2 + 1 | primes | 100.0 % |
| A090686 | Primes of the form 6n^2 - 1 | primes | 100.0 % |
| A090687 | Primes of the form 6*k^2 + 1 | primes | 100.0 % |
| A090693 | Positive numbers n such that n^2 - 2n + 2 is a prime | prime values | 31.4 % |
| A090696 | Numbers k such that k^2 - 11 is a prime | prime values | 25.2 % |
| A090698 | Primes of the form 2*n^2+1 | primes | 100.0 % |
| A090709 | Primes whose decimal representation is a valid number in base 6 and interpreted as such is again a prime | primes | 49.4 % |
| A090771 | Numbers that are congruent to {1, 9} mod 10 | residue class | 26.4 % |
| A090772 | Numbers that are congruent to {2, 8} mod 10 | residue class | 18.9 % |
| A090773 | Numbers that are congruent to {4, 6} mod 10 | residue class | 17.5 % |
| A091067 | Numbers whose odd part is of the form 4*k+3 | binary rule | 13.1 % |
| A091072 | Positive numbers k such that the Kronecker Symbol (-1 / k) > 0 | binary rule | 13.1 % |
| A091191 | Primitive abundant numbers: abundant numbers (A005101) having no abundant proper divisor | divisor functions | 25.3 % |
| A091271 | Numbers k such that 4*k^2-11 is a prime | prime values | 25.2 % |
| A091272 | Primes of the form n^2 - 11 | primes | 100.0 % |
| A091300 | Nonprimes of the form 6k + 1 | complement | 32.4 % |
| A091301 | Primes of the form p*q + p - q, where p and q are distinct primes | primes | 32.7 % |
| A091567 | Primes p such that p^2-p-1 is prime | primes | 40.4 % |
| A091633 | Primes having only {1, 3, 7, 9} as digits | primes | 29.2 % |
| A091823 | a(n) = 2*n^2 + 3*n - 1 | polynomial | 100.0 % |
| A091968 | Primes congruent to 3 (mod 16) | primes | 38.5 % |
| A091998 | Numbers that are congruent to {1, 11} mod 12 | residue class | 12.3 % |
| A091999 | Numbers that are congruent to {2, 10} mod 12 | residue class | 9.6 % |
| A092022 | Numbers k such that 16k + 3 is prime | prime values | 16.9 % |
| A092074 | Primes congruent to 3 mod 17 | primes | 44.4 % |
| A092109 | Primes p such that p+3 is a semiprime | primes | 40.9 % |
| A092168 | Primes congruent to 3 (modulo 19) | primes | 45.1 % |
| A092178 | Primes congruent to 8 mod 13 | primes | 42.7 % |
| A092192 | Semiprimes that are the sum of two successive semiprimes | multiplicative | 34.9 % |
| A092207 | Semiprimes k such that k+2 is also a semiprime | multiplicative | 29.5 % |
| A092259 | Numbers that are congruent to {4, 8} mod 12 | residue class | 0.0 % |
| A092277 | a(n) = 7*n^2 + n | polynomial | 100.0 % |
| A092476 | Numbers that are congruent to {1, 3, 9} mod 13 | residue class | 19.9 % |
| A092620 | Numbers with exactly one prime digit | digit rule | 16.5 % |
| A092621 | Primes with exactly one prime digit | primes | 33.6 % |
| A092968 | Numbers n such that 2n^2 + 11 is a prime | prime values | 19.6 % |
| A093191 | Primes congruent to 4 mod 13 | primes | 42.6 % |
| A093328 | a(n) = 2*n^2 + 3 | polynomial | 100.0 % |
| A093350 | Primes congruent to 6 mod 13 | primes | 42.9 % |
| A093359 | Primes of the form 28*k + 1 | primes | 43.6 % |
| A093485 | a(n) = (27*n^2 + 9*n + 2)/2 | polynomial | 100.0 % |
| A093500 | a(n) = (15*n^2 + 5*n + 2)/2 | polynomial | 100.0 % |
| A093838 | Primes of the form 36n + 1 | primes | 47.3 % |
| A094210 | Numbers k such that k^2 + 3k + 1 is a prime | prime values | 20.6 % |
| A094222 | a(n+1) = a(n) + (number of distinct prime factors of a(n)) for n>1; a(1)=1, a(2)=2 | self-referential | 12.3 % |
| A094407 | Primes of the form 16n+1 | primes | 38.2 % |
| A094421 | a(n) = n * (6*n^2 + 6*n + 1) | polynomial | 100.0 % |
| A094524 | Primes of form 3*prime(m) + 2 | primes | 49.6 % |
| A094589 | a(1) = 1; a(n+1) = a(n) + (largest element of {a} <= n) | self-referential | 100.0 % |
| A094657 | Primes congruent to 4 mod 17 | primes | 44.4 % |
| A094677 | Sum of digits is divisible by 10 | digit rule | 24.6 % |
| A095050 | Numbers such that all ten digits are needed to write all positive divisors in decimal representation | digit rule | 14.3 % |
| A095278 | Numbers k such that 4k + 3 is prime | prime values | 16.4 % |
| A095796 | a(n) = 1 + (26*n+17+7*n^2)*n/2 | polynomial | 100.0 % |
| A095995 | Primes of the form 100n - 1 | primes | 53.1 % |
| A096022 | Numbers that are congruent to {15, 27, 39, 51} mod 60 | residue class | 22.1 % |
| A096376 | a(n) = n + (n-1)^2 + (n+1)^2 | polynomial | 100.0 % |
| A096689 | Numbers n such that 2n^2 + 3n + 3 is prime | prime values | 19.4 % |
| A096691 | Numbers n such that 8n^2 + 6n + 3 is prime | prime values | 19.4 % |
| A096777 | a(n) = a(n-1) + Sum_{k=1..n-1}(a(k) mod 2), a(1) = 1 | self-referential | 100.0 % |
| A097080 | a(n) = 2*n^2 - 2*n + 3 | polynomial | 100.0 % |
| A097102 | Numbers m that are the hypotenuse of exactly 13 distinct integer-sided right triangles, i.e., m^2 can be written as a sum of two squares in 13 ways | quadratic form | 23.6 % |
| A097103 | Numbers m that are the hypotenuse of exactly 22 distinct integer-sided right triangles, i.e., m^2 can be written as a sum of two squares in 22 ways | quadratic form | 25.7 % |
| A097803 | a(n) = 3*(2*n^2 + 1) | polynomial | 100.0 % |
| A097933 | Primes p that divide 3^((p-1)/2) - 1 | primes | 28.5 % |
| A098005 | Beatty sequence for 1/(3 - e): a(n) = floor(n/(3-e)) | Beatty | 17.5 % |
| A098058 | Prime(n) such that 4 does not divide the difference between prime(n) and prime(n+1) | primes | 28.1 % |
| A098090 | Numbers k such that 2k-3 is prime | prime values | 15.1 % |
| A098547 | a(n) = n^3 + n^2 + 1 | polynomial | 100.0 % |
| A098603 | a(n) = n*(n+10) | polynomial | 100.0 % |
| A098828 | Primes of the form 2*n^2 + 2*n - 1 | primes | 100.0 % |
| A098847 | a(n) = n*(n + 12) | polynomial | 100.0 % |
| A098848 | a(n) = n*(n + 14) | polynomial | 100.0 % |
| A098849 | a(n) = n*(n + 16) | polynomial | 100.0 % |
| A098850 | a(n) = n*(n + 18) | polynomial | 100.0 % |
| A098974 | Primes p such that q-p = 24, where q is the next prime after p | primes | 46.4 % |
| A099007 | Primes of the form 6n^2 - 2n - 1 | primes | 100.0 % |
| A099721 | a(n) = n^2*(2*n+1) | polynomial | 100.0 % |
| A100109 | a(n) = n^3 - 2*n^2 + 2 | polynomial | 100.0 % |
| A100201 | Primes of the form 23*k+3 | primes | 46.5 % |
| A100202 | Primes of the form 13*k + 3 | primes | 42.7 % |
| A100203 | Primes of the form 37n+3 | primes | 49.2 % |
| A100207 | a(n) = 4 + 8*n + 10*n^2 + 4*n^3 | polynomial | 100.0 % |
| A100214 | a(n) = 4*n^3 + 4 | polynomial | 100.0 % |
| A100484 | The primes doubled; even semiprimes | primes | 23.0 % |
| A100493 | a(n) = n + n-th semiprime | multiplicative | 19.8 % |
| A100494 | Primes of the form 47*k + 3 | primes | 51.1 % |
| A100504 | a(n) = (4*n^3 + 6*n^2 + 8*n + 6)/3 | polynomial | 100.0 % |
| A100536 | a(n) = 3*n^2 - 2 | polynomial | 100.0 % |
| A100705 | a(n) = n^3 + (n+1)^2 | polynomial | 100.0 % |
| A100760 | Primes of the form 47n+5 | primes | 51.0 % |
| A100959 | Non-semiprimes | complement | 11.6 % |
| A101082 | Numbers n such that binary representation contains bit strings "10" and "01" (possibly overlapping) | binary rule | 9.6 % |
| A101084 | Numbers k such that 97*k + 101 is a prime | prime values | 24.3 % |
| A101095 | Fourth difference of fifth powers (A000584) | polynomial | 9.7 % |
| A101165 | a(n) = (7*n^3 + 6*n^2 + 5*n) / 6 | polynomial | 100.0 % |
| A101444 | Numbers k such that (9973*k + 10007) is a prime | prime values | 25.4 % |
| A101503 | Numbers k such that 11*k + 101 is prime | prime values | 22.5 % |
| A101557 | Numbers k such that 101*k + 1009 is prime | prime values | 23.7 % |
| A101567 | Numbers n such that 1009*n + 10007 is prime | prime values | 24.8 % |
| A101594 | Numbers with exactly two distinct decimal digits, neither of which is 0 | digit rule | 22.6 % |
| A101780 | Primes of the form 100*n + 3 | primes | 53.1 % |
| A101813 | Odd Niven (or Harshad) numbers: odd numbers that are divisible by the sum of their digits | digit rule | 33.9 % |
| A101814 | Even Niven (or Harshad) numbers: even numbers that are divisible by the sum of their digits | digit rule | 18.8 % |
| A101853 | a(n) = n*(20 + 15*n + n^2)/6 | polynomial | 100.0 % |
| A101860 | a(n) = (3+n)*(2 + 33*n + n^2)/6 | polynomial | 100.0 % |
| A102083 | a(n) = 8*n^2 + 4*n + 1 | polynomial | 100.0 % |
| A102094 | a(n) = (2*n-1)*(2*n+1)^2 | polynomial | 100.0 % |
| A102130 | Primes of the form 8*n^2 + 4*n + 1 | primes | 100.0 % |
| A102148 | Numbers k such that 101*k + 11 is prime | prime values | 23.4 % |
| A102166 | Numbers n such that 2*n^2 + 11*n + 101 is prime | prime values | 23.4 % |
| A102271 | Primes of the form 3*x^2 + 7*y^2 | quadratic form | 41.1 % |
| A102338 | Numbers k such that 10k+3 is prime | prime values | 15.9 % |
| A102339 | Numbers k such that k*10^3 + 333 is prime | prime values | 16.9 % |
| A102342 | Numbers k such that 10k + 7 is prime | prime values | 20.2 % |
| A102343 | Numbers k such that k*10^3 + 777 is prime | prime values | 16.0 % |
| A102487 | Numbers in base-12 representation that can be written with decimal digits | digit rule | 11.1 % |
| A102491 | Numbers whose base-20 representation can be written with decimal digits | digit rule | 10.9 % |
| A102649 | Numbers n such that 11*n^2 + 11*n + 3 is prime | prime values | 32.7 % |
| A102656 | Numbers k such that 11*k + 1 is prime | prime values | 23.1 % |
| A102657 | Numbers k such that 11*k^2 + 11*k + 1 is prime | prime values | 20.7 % |
| A102700 | Numbers k such that 10*k + 9 is prime | prime values | 14.6 % |
| A102703 | Numbers k such that 100*k+99 is prime | prime values | 16.1 % |
| A102711 | Numbers k such that 11*k + 7 is prime | prime values | 22.0 % |
| A102721 | Numbers n such that 11*n + 13 is prime | prime values | 22.4 % |
| A102731 | Numbers k such that 11*k + 23 is prime | prime values | 23.1 % |
| A102732 | Primes of the form 13n+5 | primes | 42.8 % |
| A102733 | Numbers n such that 2*n + 101 is prime | prime values | 22.6 % |
| A102734 | Primes of the form 23n+5 | primes | 46.5 % |
| A102768 | Numbers k such that 23*k + 11 is prime | prime values | 22.7 % |
| A102851 | Primes of the form 19n + 5 | primes | 45.1 % |
| A102852 | Primes whose squares are congruent to 5 (modulo 19) | primes | 40.2 % |
| A103118 | Numbers k such that 100*k + 57 is prime | prime values | 16.3 % |
| A103215 | Numbers congruent to {1, 2, 5, 10, 13, 17} mod 24 | residue class | 14.8 % |
| A103564 | Primes p such that 3*p^2 + 2 is prime | primes | 49.2 % |
| A103664 | Primes p such that the number of divisors of p-1 is less than the number of divisors of p+1 | primes | 29.9 % |
| A103776 | Primes p such that 8*p^2 + 4*p + 1 is also prime | primes | 43.6 % |
| A103871 | Numbers n such that 100n + 69 is prime | prime values | 15.6 % |
| A104188 | a(n) = 4*n*(4*n - 1) | polynomial | 100.0 % |
| A104249 | a(n) = (3*n^2 + n + 2)/2 | polynomial | 100.0 % |
| A104272 | Ramanujan primes R_n: a(n) is the smallest number such that if x >= a(n), then pi(x) - pi(x/2) >= n, where pi(x) is the number of primes <= x | primes | 26.5 % |
| A105042 | Numbers n such that 10n - 1 is prime | prime values | 21.3 % |
| A105043 | Numbers n such that 100*n - 1 is prime | prime values | 22.5 % |
| A105044 | Numbers n such that 1000*n - 1 is prime | prime values | 22.9 % |
| A105057 | Numbers n such that 10000 * n - 1 is prime | prime values | 23.2 % |
| A105059 | Numbers n such that 100000n - 1 is prime | prime values | 23.8 % |
| A105107 | Numbers n such that 10000n + 1001 is prime | prime values | 21.6 % |
| A105126 | Primes of the form 16n+9 | primes | 38.1 % |
| A105127 | Primes of the form 32n+17 | primes | 43.3 % |
| A105128 | Primes of the form 64n+33 | primes | 47.9 % |
| A105129 | Primes of the form 128n+65 | primes | 53.0 % |
| A105130 | Primes of the form 256n+129 | primes | 58.2 % |
| A105131 | Primes of the form 512n+257 | primes | 64.2 % |
| A105132 | Primes of the form 1024n + 513 | primes | 70.4 % |
| A105133 | Numbers n such that 8n + 5 is prime | prime values | 20.8 % |
| A105134 | Numbers n such that 16n+9 is prime | prime values | 18.6 % |
| A105135 | Numbers n such that 32n+17 is prime | prime values | 23.2 % |
| A105136 | Numbers n such that 64n+33 is prime | prime values | 17.3 % |
| A105137 | Numbers n such that 128n+65 is prime | prime values | 21.4 % |
| A105138 | Numbers n such that 256n+129 is prime | prime values | 19.0 % |
| A105139 | Numbers k such that 512*k+257 is prime | prime values | 24.3 % |
| A105140 | Numbers n such that 1024n+513 is prime | prime values | 20.0 % |
| A105184 | Primes that can be written as concatenation of two primes in decimal representation | primes | 34.0 % |
| A105374 | a(n) = 4*n^3 + 4*n | polynomial | 100.0 % |
| A105441 | Numbers with at least two odd prime factors (not necessarily distinct) | multiplicative | 12.9 % |
| A105571 | Numbers m such that m - 2 and m + 2 are semiprimes | multiplicative | 27.5 % |
| A105583 | Numbers k such that 101*k + 997 is prime | prime values | 24.0 % |
| A105679 | Numbers k such that 997*k + 101 is prime | prime values | 25.2 % |
| A105680 | Numbers k such that 1009*k + 9973 is prime | prime values | 24.8 % |
| A105710 | Numbers k such that 9973*k + 1009 is prime | prime values | 25.3 % |
| A105772 | Numbers k such that 7*k + 2 is prime | prime values | 32.0 % |
| A105773 | Numbers n such that 11*n + 97 is prime | prime values | 22.7 % |
| A105775 | Numbers n such that 97*n + 11 is prime | prime values | 23.6 % |
| A105854 | Primes of the form 20*k + 3 | primes | 42.2 % |
| A105961 | Primes p such that 20*p + 3 is prime | primes | 35.3 % |
| A106039 | Belgian-0 numbers | digit rule | 16.7 % |
| A106093 | Primes with maximal digit = 9 | primes | 26.9 % |
| A106110 | Primes having only {7, 8, 9} as digits | primes | 28.2 % |
| A106111 | Primes having only {6, 7, 8, 9} as digits | primes | 27.7 % |
| A106112 | Primes with minimal digit > 4 | primes | 27.9 % |
| A106114 | Primes with minimal digit > 3 | primes | 28.3 % |
| A106115 | Primes with minimal digit > 2 | primes | 25.0 % |
| A106116 | Primes without {0, 1} as digits | primes | 25.3 % |
| A106120 | Primes with maximal digit > 3 | primes | 23.1 % |
| A106122 | Primes with maximal digit > 5 | primes | 23.3 % |
| A106124 | Primes with maximal digit > 7 | primes | 24.7 % |
| A106439 | Belgian-1 numbers | digit rule | 17.9 % |
| A106483 | Primes p such that 2*p^2 - 1 is also prime | primes | 39.9 % |
| A106518 | Belgian-2 numbers | digit rule | 15.7 % |
| A106564 | Perfect squares which are not the difference of two primes | powers | 100.0 % |
| A106596 | Belgian-3 numbers | digit rule | 17.5 % |
| A106648 | a(n) = 3*n^2 + 6*n + 8 | polynomial | 100.0 % |
| A106690 | Numbers k such that 11*k - 97 is prime | prime values | 23.1 % |
| A106692 | Numbers k such that 97*k - 11 is prime | prime values | 23.6 % |
| A106695 | Numbers k such that 101*k - 997 is prime | prime values | 24.1 % |
| A106697 | Numbers k such that 997*k - 101 is prime | prime values | 25.0 % |
| A106699 | Numbers k such that 1009*k - 9973 is prime | prime values | 24.7 % |
| A106700 | Numbers k such that 9973*k - 1009 is prime | prime values | 25.3 % |
| A106839 | Numbers congruent to 11 mod 16 | residue class | 33.1 % |
| A106856 | Primes of the form x^2 + xy + 2y^2, with x and y nonnegative | primes | 27.8 % |
| A106857 | Primes of the form x^2+xy+3y^2, with x and y nonnegative | quadratic form | 32.0 % |
| A106861 | Primes of the form x^2+xy+4y^2, with x and y nonnegative | quadratic form | 44.7 % |
| A106862 | Primes of the form x^2+xy+5y^2, with x and y nonnegative | quadratic form | 30.9 % |
| A106866 | Primes of the form 2x^2+xy+3y^2, with x and y nonnegative | quadratic form | 36.1 % |
| A106867 | Primes of the form 2*x^2 + x*y + 3*y^2 | quadratic form | 29.9 % |
| A106869 | Primes of the form x^2+xy+6y^2, with x and y nonnegative | quadratic form | 36.2 % |
| A106870 | Primes of the form x^2+xy+7y^2, with x and y nonnegative | quadratic form | 36.0 % |
| A106871 | Primes of the form 2x^2+xy+4y^2, with x and y nonnegative | quadratic form | 36.6 % |
| A106874 | Primes of the form x^2+xy+8y^2, with x and y nonnegative | quadratic form | 36.3 % |
| A106875 | Primes of the form 3x^2+2xy+3y^2, with x and y nonnegative | quadratic form | 40.2 % |
| A106877 | Primes of the form 3x^2+xy+3y^2, with x and y nonnegative | quadratic form | 39.4 % |
| A106880 | Primes of the form x^2+xy+9y^2, with x and y nonnegative | quadratic form | 35.5 % |
| A106881 | Primes of the form x^2+xy+9y^2 | quadratic form | 34.8 % |
| A106882 | Primes of the form 2x^2+2xy+5y^2, with x and y nonnegative | quadratic form | 41.7 % |
| A106883 | Primes of the form 3x^2+3xy+4y^2, with x and y nonnegative | quadratic form | 47.9 % |
| A106885 | Primes of the form 2x^2+xy+5y^2, with x and y nonnegative | quadratic form | 46.5 % |
| A106889 | Primes of the form 2x^2 + 5y^2 | quadratic form | 37.2 % |
| A106890 | Primes of the form x^2 + xy + 11y^2, with x and y nonnegative | quadratic form | 29.7 % |
| A106892 | Primes of the form 3x^2+2xy+4y^2, with x and y nonnegative | quadratic form | 39.3 % |
| A106894 | Primes of the form 3x^2+xy+4y^2, with x and y nonnegative | quadratic form | 39.9 % |
| A106897 | Primes of the form 2x^2+xy+6y^2, with x and y nonnegative | quadratic form | 40.0 % |
| A106900 | Primes of the form x^2+xy+12y^2, with x and y nonnegative | quadratic form | 40.2 % |
| A106901 | Primes of the form 3x^2+3xy+5y^2, with x and y nonnegative | quadratic form | 40.1 % |
| A106903 | Primes of the form x^2+xy+13y^2, with x and y nonnegative | quadratic form | 39.0 % |
| A106905 | Primes of the form 2x^2+2xy+7y^2, with x and y nonnegative | quadratic form | 36.7 % |
| A106907 | Primes of the form 4x^2+3xy+4y^2, with x and y nonnegative | quadratic form | 49.7 % |
| A106910 | Primes of the form 2x^2+xy+7y^2, with x and y nonnegative | quadratic form | 44.3 % |
| A106914 | Primes of the form 3x^2+2xy+5y^2, with x and y nonnegative | quadratic form | 36.8 % |
| A106917 | Primes of the form 2x^2 + 7y^2 | quadratic form | 35.8 % |
| A106918 | Primes of the form 3x^2+xy+5y^2, with x and y nonnegative | quadratic form | 37.6 % |
| A106921 | Primes of the form x^2+xy+15y^2, with x and y nonnegative | quadratic form | 37.5 % |
| A106923 | Primes of the form 4x^2+xy+4y^2, with x and y nonnegative | quadratic form | 47.1 % |
| A106926 | Primes of the form 2x^2+xy+8y^2, with x and y nonnegative | quadratic form | 42.5 % |
| A106929 | Primes of the form x^2+xy+16y^2, with x and y nonnegative | quadratic form | 42.2 % |
| A106931 | Primes of the form 4x^2+4xy+5y^2, with x and y nonnegative | quadratic form | 35.9 % |
| A106932 | Primes of the form x^2 + xy + 17y^2, with x and y nonnegative | quadratic form | 29.5 % |
| A106934 | Primes of the form 3x^2+2xy+6y^2, with x and y nonnegative | quadratic form | 38.1 % |
| A106937 | Primes of the form 2x^2+2xy+9y^2, with x and y nonnegative | quadratic form | 38.2 % |
| A106939 | Primes of the form 4x^2+3xy+5y^2, with x and y nonnegative | quadratic form | 43.4 % |
| A106942 | Primes of the form 3x^2+xy+6y^2, with x and y nonnegative | quadratic form | 42.2 % |
| A106945 | Primes of the form 2x^2+xy+9y^2, with x and y nonnegative | quadratic form | 42.3 % |
| A106949 | Primes of the form 2x^2 + 9y^2 | quadratic form | 39.7 % |
| A106950 | Primes of the form x^2 + 18y^2 | quadratic form | 39.6 % |
| A106951 | Primes of the form 3x^2+3xy+7y^2, with x and y nonnegative | quadratic form | 44.5 % |
| A106953 | Primes of the form 4x^2+2xy+5y^2, with x and y nonnegative | quadratic form | 38.6 % |
| A106956 | Primes of the form 4x^2+xy+5y^2, with x and y nonnegative | quadratic form | 40.0 % |
| A106959 | Primes of the form 2x^2+xy+10y^2, with x and y nonnegative | quadratic form | 39.8 % |
| A106963 | Primes of the form 4x^2 + 5y^2 | quadratic form | 41.6 % |
| A106964 | Primes of the form 3x^2+2xy+7y^2, with x and y nonnegative | quadratic form | 43.0 % |
| A106966 | Primes of the form 3x^2+xy+7y^2, with x and y nonnegative | quadratic form | 37.3 % |
| A106969 | Primes of the form x^2+xy+21y^2, with x and y nonnegative | quadratic form | 37.2 % |
| A106971 | Primes of the form 5x^2+4xy+5y^2, with x and y nonnegative | quadratic form | 48.3 % |
| A106974 | Primes of the form 2x^2+2xy+11y^2, with x and y nonnegative | quadratic form | 43.0 % |
| A106975 | Primes of the form 4x^2+3xy+6y^2, with x and y nonnegative | quadratic form | 48.9 % |
| A106978 | Primes of the form 3x^2+3xy+8y^2, with x and y nonnegative | quadratic form | 48.9 % |
| A106980 | Primes of the form 2x^2+xy+11y^2, with x and y nonnegative | quadratic form | 47.9 % |
| A106984 | Primes of the form 2x^2 + 11y^2 | quadratic form | 35.2 % |
| A106985 | Primes of the form 5x^2+3xy+5y^2, with x and y nonnegative | quadratic form | 38.7 % |
| A106988 | Primes of the form x^2+xy+23y^2, with x and y nonnegative | quadratic form | 33.3 % |
| A106990 | Primes of the form 5x^2+5xy+6y^2, with x and y nonnegative | quadratic form | 50.2 % |
| A106992 | Primes of the form 4x^2+xy+6y^2, with x and y nonnegative | quadratic form | 47.9 % |
| A106995 | Primes of the form 3x^2+xy+8y^2, with x and y nonnegative | quadratic form | 48.0 % |
| A106998 | Primes of the form 2x^2+xy+12y^2, with x and y nonnegative | quadratic form | 47.8 % |
| A107002 | Primes of the form 5x^2+2xy+5y^2, with x and y nonnegative | quadratic form | 49.7 % |
| A107003 | Primes of the form 24*k + 5 | primes | 44.9 % |
| A107005 | Primes of the form 4x^2+4xy+7y^2, with x and y nonnegative | quadratic form | 46.3 % |
| A107006 | Primes of the form 4x^2-4xy+7y^2, with x and y nonnegative | quadratic form | 44.4 % |
| A107007 | Primes of the form 3*x^2+8*y^2 | quadratic form | 44.3 % |
| A107008 | Primes of the form x^2 + 24*y^2 | quadratic form | 44.4 % |
| A107009 | Primes of the form 5x^2+xy+5y^2, with x and y nonnegative | quadratic form | 46.4 % |
| A107012 | Primes of the form x^2+xy+25y^2, with x and y nonnegative | quadratic form | 42.1 % |
| A107071 | Numbers k such that 1019*k + 1021 is prime | prime values | 24.4 % |
| A107072 | Numbers k such that 1021*k + 1019 is prime | prime values | 24.7 % |
| A107132 | Primes of the form 2x^2 + 13y^2 | quadratic form | 43.0 % |
| A107133 | Primes of the form 4x^2 + 7y^2 | quadratic form | 30.4 % |
| A107134 | Primes of the form x^2+28y^2 | quadratic form | 30.4 % |
| A107135 | Primes of the form 5x^2 + 6y^2 | quadratic form | 48.1 % |
| A107136 | Primes of the form 3x^2 + 10y^2 | quadratic form | 47.5 % |
| A107137 | Primes of the form 2x^2 + 15y^2 | quadratic form | 47.3 % |
| A107138 | Primes of the form 3x^2 + 11y^2 | quadratic form | 46.4 % |
| A107139 | Primes of the form 2x^2 + 17y^2 | quadratic form | 37.3 % |
| A107140 | Primes of the form 5x^2 + 7y^2 | quadratic form | 41.5 % |
| A107141 | Primes of the form 4x^2 + 9y^2 | quadratic form | 43.9 % |
| A107142 | Primes of the form x^2 + 36y^2 | quadratic form | 44.2 % |
| A107143 | Primes of the form 2x^2 + 19y^2 | quadratic form | 42.3 % |
| A107144 | Primes of the form 5x^2 + 8y^2 | quadratic form | 42.3 % |
| A107145 | Primes of the form x^2 + 40y^2 | quadratic form | 41.9 % |
| A107146 | Primes of the form 6x^2 + 7y^2 | quadratic form | 40.5 % |
| A107147 | Primes of the form 3x^2 + 14y^2 | quadratic form | 40.7 % |
| A107148 | Primes of the form 2x^2 + 21y^2 | quadratic form | 42.0 % |
| A107149 | Primes of the form 4x^2 + 11y^2 | quadratic form | 42.8 % |
| A107150 | Primes of the form x^2 + 44y^2 | quadratic form | 42.8 % |
| A107151 | Primes of the form 5x^2 + 9y^2 | quadratic form | 47.8 % |
| A107152 | Primes of the form x^2 + 45y^2 | quadratic form | 47.5 % |
| A107153 | Primes of the form 2x^2 + 23y^2 | quadratic form | 36.9 % |
| A107155 | Primes of the form x^2 + 49y^2 | quadratic form | 35.6 % |
| A107156 | Primes of the form 2x^2 + 25y^2 | quadratic form | 44.7 % |
| A107157 | Primes of the form x^2 + 50y^2 | quadratic form | 44.7 % |
| A107158 | Primes of the form 3x^2 + 17y^2 | quadratic form | 45.2 % |
| A107159 | Primes of the form 4x^2 + 13y^2 | quadratic form | 40.0 % |
| A107160 | Primes of the form x^2 + 52y^2 | quadratic form | 40.0 % |
| A107161 | Primes of the form 2x^2 + 27y^2 | quadratic form | 46.7 % |
| A107162 | Primes of the form x^2 + 54y^2 | quadratic form | 46.3 % |
| A107163 | Primes of the form 7x^2 + 8y^2 | quadratic form | 40.5 % |
| A107164 | Primes of the form x^2 + 56y^2 | quadratic form | 40.7 % |
| A107165 | Primes of the form 3x^2 + 19y^2 | quadratic form | 45.6 % |
| A107166 | Primes of the form 2x^2 + 29y^2 | quadratic form | 34.4 % |
| A107167 | Primes of the form 5x^2 + 12y^2 | quadratic form | 48.3 % |
| A107168 | Primes of the form 4x^2 + 15y^2 | quadratic form | 47.5 % |
| A107169 | Primes of the form 3x^2 + 20y^2 | quadratic form | 48.4 % |
| A107170 | Primes of the form 2x^2 + 31y^2 | quadratic form | 42.4 % |
| A107171 | Primes of the form 5x^2 + 13y^2 | quadratic form | 48.0 % |
| A107172 | Primes of the form 6x^2 + 11y^2 | quadratic form | 50.2 % |
| A107173 | Primes of the form 3x^2 + 22y^2 | quadratic form | 50.4 % |
| A107174 | Primes of the form 2x^2 + 33y^2 | quadratic form | 50.5 % |
| A107175 | Primes of the form 4x^2 + 17y^2 | quadratic form | 41.5 % |
| A107176 | Primes of the form x^2 + 68y^2 | quadratic form | 41.8 % |
| A107177 | Primes of the form 3x^2+23y^2 | quadratic form | 47.4 % |
| A107178 | Primes of the form 7x^2 + 10y^2 | quadratic form | 37.7 % |
| A107179 | Primes of the form 5x^2 + 14y^2 | quadratic form | 39.8 % |
| A107180 | Primes of the form 2x^2 + 35y^2 | quadratic form | 39.8 % |
| A107181 | Primes of the form 8x^2 + 9y^2 | quadratic form | 44.5 % |
| A107182 | Primes of the form 2x^2 + 37y^2 | quadratic form | 44.9 % |
| A107183 | Primes of the form 3x^2 + 25y^2 | quadratic form | 50.0 % |
| A107184 | Primes of the form x^2 + 75y^2 | quadratic form | 50.0 % |
| A107185 | Primes of the form 4x^2 + 19y^2 | quadratic form | 42.4 % |
| A107186 | Primes of the form x^2 + 76y^2 | quadratic form | 42.5 % |
| A107187 | Primes of the form 7x^2 + 11y^2 | quadratic form | 42.4 % |
| A107188 | Primes of the form 6x^2 + 13y^2 | quadratic form | 46.0 % |
| A107189 | Primes of the form 3x^2 + 26y^2 | quadratic form | 45.4 % |
| A107190 | Primes of the form 2x^2 + 39y^2 | quadratic form | 46.0 % |
| A107191 | Primes of the form 5x^2 + 16y^2 | quadratic form | 46.6 % |
| A107192 | Primes of the form x^2 + 80*y^2 | quadratic form | 46.8 % |
| A107193 | Primes of the form x^2 + 81y^2 | quadratic form | 46.9 % |
| A107194 | Primes of the form 2x^2 + 41y^2 | quadratic form | 37.9 % |
| A107195 | Primes of the form 7x^2 + 12y^2 | quadratic form | 45.8 % |
| A107196 | Primes of the form 4x^2 + 21y^2 | quadratic form | 46.2 % |
| A107197 | Primes of the form 3x^2 + 28y^2 | quadratic form | 46.0 % |
| A107198 | Primes of the form x^2 + 84y^2 | quadratic form | 46.2 % |
| A107199 | Primes of the form 5x^2 + 17y^2 | quadratic form | 40.6 % |
| A107200 | Primes of the form 2x^2 + 43y^2 | quadratic form | 45.1 % |
| A107201 | Primes of the form 8x^2 + 11y^2 | quadratic form | 40.2 % |
| A107202 | Primes of the form x^2 + 88y^2 | quadratic form | 40.1 % |
| A107203 | Primes of the form 9x^2 + 10y^2 | quadratic form | 52.3 % |
| A107204 | Primes of the form 5x^2 + 18y^2 | quadratic form | 52.0 % |
| A107205 | Primes of the form 2x^2 + 45y^2 | quadratic form | 51.8 % |
| A107206 | Primes of the form x^2 + 90y^2 | quadratic form | 52.0 % |
| A107207 | Primes of the form 7x^2 + 13y^2 | quadratic form | 40.0 % |
| A107208 | Primes of the form 4x^2 + 23y^2 | quadratic form | 40.1 % |
| A107209 | Primes of the form x^2 + 92y^2 | quadratic form | 40.0 % |
| A107210 | Primes of the form 3x^2 + 31y^2 | quadratic form | 42.8 % |
| A107211 | Primes of the form 2x^2 + 47y^2 | quadratic form | 42.4 % |
| A107212 | Primes of the form 3x^2 + 32y^2 | quadratic form | 48.7 % |
| A107213 | Primes of the form x^2 + 96y^2 | quadratic form | 48.5 % |
| A107214 | Primes of the form 2x^2 + 49y^2 | quadratic form | 40.4 % |
| A107215 | Primes of the form x^2 + 98y^2 | quadratic form | 40.7 % |
| A107216 | Primes of the form 9x^2 + 11y^2 | quadratic form | 48.3 % |
| A107217 | Primes of the form x^2 + 99y^2 | quadratic form | 48.2 % |
| A107218 | Primes of the form 4x^2 + 25y^2 | quadratic form | 41.7 % |
| A107219 | Primes of the form x^2 + 100y^2 | quadratic form | 41.6 % |
| A107288 | Primes whose digit sum is a square | primes | 46.6 % |
| A107301 | Numbers k such that 10007*k + 99991 is prime | prime values | 25.2 % |
| A107302 | Numbers k such that 99991*k + 10007 is prime | prime values | 25.9 % |
| A107303 | Numbers k such that (3*k - 5) is prime | prime values | 16.3 % |
| A107304 | Numbers k such that 5k - 7 is prime | prime values | 20.3 % |
| A107305 | Numbers k such that 11*k - 13 is prime | prime values | 22.4 % |
| A107306 | Numbers k such that (17*k - 19) is prime | prime values | 23.2 % |
| A107308 | Numbers k such that (29*k - 31) is prime | prime values | 23.9 % |
| A107366 | Numbers k such that 101*k + 103 is prime | prime values | 24.3 % |
| A107369 | Numbers n such that 103*n + 101 is prime | prime values | 23.9 % |
| A107371 | Numbers k such that 101*k - 103 is prime | prime values | 24.0 % |
| A107372 | Numbers n such that 103*n - 101 is prime | prime values | 24.0 % |
| A107400 | Numbers k such that 107*k + 109 is prime | prime values | 23.8 % |
| A107405 | Numbers n such that 109*n + 107 is prime | prime values | 24.3 % |
| A107406 | Numbers n such that 107*n - 109 is prime | prime values | 24.1 % |
| A107407 | Numbers n such that 109*n - 107 is prime | prime values | 24.3 % |
| A107665 | Numbers with semiprime digits (digits 4, 6, 9 only) | digit rule | 16.2 % |
| A107666 | Primes having only {4, 6, 9} as digits | primes | 40.4 % |
| A107715 | Primes having only {0,1,2,3} as digits | primes | 28.9 % |
| A107960 | Numbers n such that 11*n - 1 is prime | prime values | 22.6 % |
| A107992 | Numbers n such that 11*n - 3 is prime | prime values | 16.1 % |
| A107994 | Numbers n such that 11*n - 2 is prime | prime values | 32.7 % |
| A108027 | Numbers k such that 137*k + 139 is prime | prime values | 24.2 % |
| A108028 | Numbers k such that 139*k + 137 is prime | prime values | 24.3 % |
| A108029 | Numbers k such that 149*k + 151 is prime | prime values | 24.2 % |
| A108030 | Numbers k such that 151*k + 149 is prime | prime values | 24.0 % |
| A108058 | Numbers k such that 179*k + 181 is prime | prime values | 24.3 % |
| A108059 | Numbers k such that 181*k + 179 is prime | prime values | 24.2 % |
| A108060 | Numbers k such that 191*k + 193 is prime | prime values | 24.8 % |
| A108061 | Numbers k such that 193*k + 191 is prime | prime values | 24.4 % |
| A108099 | a(n) = 8*n^2 + 8*n + 4 | polynomial | 100.0 % |
| A108100 | a(n) = (2*n-1)^2 + (2*n+1)^2 | polynomial | 100.0 % |
| A108181 | Semiprimes of the form 4n + 1 | multiplicative | 26.2 % |
| A108187 | Numbers n such that 11*n - 5 is prime | prime values | 20.8 % |
| A108195 | a(n) = n^2 + 5*n - 1 | polynomial | 100.0 % |
| A108211 | a(n) = 16*n^2 + 1 | polynomial | 100.0 % |
| A108232 | Numbers n such that 11*n - 7 is prime | prime values | 21.6 % |
| A108233 | Numbers n such that 11*n + 5 is prime | prime values | 20.4 % |
| A108341 | Numbers n such that 997*n - 1009 is prime | prime values | 24.8 % |
| A108342 | Numbers n such that 1009*n - 997 is prime | prime values | 24.6 % |
| A108386 | Primes p such that p's set of distinct digits is {1,3,7,9} | primes | 30.6 % |
| A108584 | Numbers k such that 10*k - 97 is prime | prime values | 21.8 % |
| A108588 | Numbers k such that 10*k + 97 is prime | prime values | 20.7 % |
| A108594 | Numbers k such that 10*k + 101 is prime | prime values | 22.1 % |
| A108595 | Numbers k such that 10*k + 103 is prime | prime values | 21.8 % |
| A108596 | Numbers k such that 911*k - 7 is prime | prime values | 23.9 % |
| A108597 | Numbers n such that 911*n - 11 is prime | prime values | 24.3 % |
| A108598 | a(n) = floor(n*((5+sqrt(5))/4)) | Beatty | 13.0 % |
| A108601 | Numbers n such that 7*n - 911 is prime | prime values | 21.9 % |
| A108724 | Numbers n such that 11*n + 17 is prime | prime values | 22.4 % |
| A108725 | Numbers n such that 11*n + 19 is prime | prime values | 22.6 % |
| A108726 | Numbers n such that 11*n + 29 is prime | prime values | 23.4 % |
| A108727 | Numbers n such that 11*n + 31 is prime | prime values | 22.9 % |
| A108751 | Numbers k such that 11*k - 911 is prime | prime values | 22.9 % |
| A108757 | Numbers k such that 1000*k + 911 is prime | prime values | 22.5 % |
| A108762 | Numbers n such that 911*n + 13 is prime | prime values | 24.4 % |
| A108769 | Numbers m such that m^2 + (m+1)^2 is a semiprime | multiplicative | 15.8 % |
| A108854 | Numbers k such that 10*k - 127 is prime | prime values | 21.0 % |
| A108855 | Numbers n such that 10*n + 127 is prime | prime values | 22.0 % |
| A108856 | Numbers k such that 10*k - 131 is prime | prime values | 21.8 % |
| A108857 | Numbers n such that 10*n + 131 is prime | prime values | 21.2 % |
| A108874 | Numbers k such that 41*k + 43 is prime | prime values | 23.8 % |
| A108899 | Numbers k such that 11*k + 2357 is prime | prime values | 22.7 % |
| A108900 | Numbers k such that 2357*k + 11 is prime | prime values | 24.5 % |
| A108901 | Numbers n such that 2357*n + 23 is prime | prime values | 24.8 % |
| A108902 | Numbers k such that 23*k + 2357 is prime | prime values | 23.6 % |
| A108928 | a(n) = 8*n^2 - 3 | polynomial | 100.0 % |
| A108935 | Numbers k such that 7*k + 911 is prime | prime values | 22.2 % |
| A108936 | Numbers n such that 11*n + 911 is prime | prime values | 22.7 % |
| A108937 | Numbers k such that 911*k + 11 is prime | prime values | 24.6 % |
| A108938 | Numbers k such that 911*k + 7 is prime | prime values | 23.6 % |
| A108969 | Numbers n such that 43*n + 41 is prime | prime values | 23.9 % |
| A108976 | Numbers k such that 17*k + 19 is prime | prime values | 23.2 % |
| A108977 | Numbers n such that 19*n + 17 is prime | prime values | 23.6 % |
| A108978 | Numbers k such that 29*k + 31 is prime | prime values | 23.1 % |
| A108979 | Numbers k such that 31*k + 29 is prime | prime values | 23.1 % |
| A109303 | Numbers k with at least one duplicate base-10 digit (A107846(k) > 0) | digit rule | 10.7 % |
| A109373 | Semiprimes of the form semiprime + 1 | multiplicative | 30.3 % |
| A109603 | Numbers n such that 43*n - 41 is prime | prime values | 24.2 % |
| A109604 | Numbers n such that 41*n - 43 is prime | prime values | 23.6 % |
| A109605 | Numbers n such that 100000n + 91111 is prime | prime values | 23.8 % |
| A109611 | Chen primes: primes p such that p + 2 is either a prime or a semiprime | primes | 34.5 % |
| A109953 | Primes p such that p^2+2 is a semiprime | primes | 41.2 % |
| A110451 | a(n) = n*(4*n^2 + 2*n + 1) | polynomial | 100.0 % |
| A110801 | Numbers k such that 12k + 1 is prime | prime values | 18.3 % |
| A110831 | a(n) = 3*n^2 + 27*n + 1 | polynomial | 100.0 % |
| A110913 | Numbers n such that 23*n^2 - 49 is prime | prime values | 20.7 % |
| A110959 | Numbers k such that 23*k^2 + 1 is prime | prime values | 18.8 % |
| A110960 | Numbers n such that 23*n^2 + 4 is prime | prime values | 28.3 % |
| A110961 | Numbers k such that 23*k^2 + 9 is prime | prime values | 17.6 % |
| A110964 | Numbers k such that 23*k^2 + 16 is prime | prime values | 28.3 % |
| A110965 | Numbers k such that 23*k^2 + 25 is prime | prime values | 19.2 % |
| A110966 | Numbers k such that 23*k^2 + 36 is prime | prime values | 27.7 % |
| A110967 | Numbers k such that 23*k^2 + 49 is prime | prime values | 19.6 % |
| A110974 | Numbers n such that 23*n^2 - 1 is prime | prime values | 23.1 % |
| A110994 | Numbers n such that 23*n^2 - 4 is prime | prime values | 32.2 % |
| A110998 | Numbers n such that 23*n^2 - 9 is prime | prime values | 22.6 % |
| A110999 | Numbers n such that 23*n^2 - 16 is prime | prime values | 32.0 % |
| A111001 | Numbers n such that 23*n^2 - 25 is prime | prime values | 23.4 % |
| A111040 | Numbers n such that 2*n^2 + 9 is prime | prime values | 17.9 % |
| A111041 | Numbers m such that 2*m^2 + 25 is prime | prime values | 19.8 % |
| A111046 | Difference between squares of twin prime pairs | primes | 32.3 % |
| A111051 | Numbers m such that 3*m^2 + 1 is prime | prime values | 21.5 % |
| A111052 | Numbers m such that 3*m^2 + 4 is prime | prime values | 30.8 % |
| A111068 | Numbers k such that 3*k^2 + 16 is prime | prime values | 30.8 % |
| A111069 | Numbers k such that 3*k^2 + 25 is prime | prime values | 21.9 % |
| A111082 | Numbers n such that 3*n^2 + 49 is prime | prime values | 18.8 % |
| A111083 | Numbers k such that 3*k^2 + 64 is prime | prime values | 30.7 % |
| A111094 | Numbers k such that 18*k + 1 is prime | prime values | 18.2 % |
| A111144 | a(n) = n*(n+13)*(n+14)/6 | polynomial | 100.0 % |
| A111147 | Numbers k such that 5*k^2 + 1 is prime | prime values | 20.7 % |
| A111148 | Numbers k such that 5*k^2 + 4 is prime | prime values | 30.2 % |
| A111149 | Numbers k such that 5*k^2 + 9 is prime | prime values | 19.8 % |
| A111174 | Numbers k such that 24*k + 1 is prime | prime values | 18.6 % |
| A111175 | Numbers k such that 30*k + 1 is prime | prime values | 16.8 % |
| A111199 | Numbers k such that 4k + 9 is prime | prime values | 16.3 % |
| A111215 | Numbers k such that 4k + 5 is prime | prime values | 20.7 % |
| A111223 | Numbers n such that 5*n + 2 is prime | prime values | 30.2 % |
| A111224 | Numbers n such that 5*n + 7 is prime | prime values | 20.2 % |
| A111225 | Numbers n such that 5*n + 8 is prime | prime values | 30.6 % |
| A111226 | Numbers k such that 5*k + 12 is prime | prime values | 25.1 % |
| A111230 | Numbers k such that 5*k + 14 is prime | prime values | 29.1 % |
| A111249 | Numbers k such that 7*k + 8 is prime | prime values | 30.2 % |
| A111250 | Numbers n such that 7*n + 10 is prime | prime values | 29.4 % |
| A111251 | Numbers k such that 3*k^2 + 3*k + 1 is prime | prime values | 21.1 % |
| A111292 | Numbers n such that 6*n^2 + 6*n + 1 is prime | prime values | 19.7 % |
| A111294 | Numbers n such that 23*n + 2 is prime | prime values | 31.4 % |
| A111312 | Numbers n such that 11*n + 2 is prime | prime values | 30.7 % |
| A111367 | Numbers k such that 7*k + 5 is prime | prime values | 20.0 % |
| A111369 | Numbers k such that 13*k + 11 is prime | prime values | 22.6 % |
| A111396 | a(n) = n*(n+7)*(n+8)/6 | polynomial | 100.0 % |
| A111455 | Numbers k such that 101*k + 97 is prime | prime values | 24.1 % |
| A111488 | Primes having only {0, 1, 3, 6} as digits | primes | 32.1 % |
| A111501 | Numbers k such that k^3 - k^2 + 1 is prime | prime values | 22.9 % |
| A111592 | Admirable numbers. A number n is admirable if there exists a proper divisor d' of n such that sigma(n)-2d'=2n, where sigma(n) is the sum of all divisors of n | divisor functions | 24.8 % |
| A112087 | a(n) = 4*(n^2 - n + 1) | polynomial | 100.0 % |
| A112391 | Primes p such that 23*p + 2 is also prime | primes | 48.2 % |
| A112771 | Semiprimes of the form 6n + 1 | multiplicative | 33.5 % |
| A112772 | Semiprimes of the form 6n+2 | multiplicative | 35.3 % |
| A112774 | Semiprimes of the form 6n+4 | multiplicative | 35.2 % |
| A112775 | Numbers k such that 6k+1 is semiprime | multiplicative | 14.2 % |
| A112776 | Numbers k such that 6k+5 is semiprime | multiplicative | 13.3 % |
| A112777 | Numbers k such that 2*k^2 + 1 is a semiprime | multiplicative | 17.9 % |
| A112886 | Positive integers that have no triangular divisors > 1 | divisor functions | 2.3 % |
| A113115 | Primes p such that 17*p + 2 is also prime | primes | 47.9 % |
| A113151 | Primes p such that 19*p + 2 is also prime | primes | 47.9 % |
| A113169 | Primes p such that 13*p + 2 is also prime | primes | 47.4 % |
| A113487 | Numbers k such that 17*k + 2 is prime | prime values | 33.4 % |
| A113488 | Numbers k such that 19*k + 2 is prime | prime values | 32.9 % |
| A113502 | A number n is included if at least one of its divisors > 1 is a triangular number (i.e., is of the form m(m+1)/2, m >= 2) | divisor functions | 14.5 % |
| A113510 | Numbers k such that 29*k + 2 is prime | prime values | 33.5 % |
| A113536 | Numbers k such that k^2 + 13 is prime | prime values | 22.9 % |
| A113801 | Numbers that are congruent to {1, 13} mod 14 | residue class | 26.8 % |
| A113802 | Numbers that are congruent to {2, 12} mod 14 | residue class | 19.7 % |
| A113803 | Numbers that are congruent to {3, 11} mod 14 | residue class | 30.1 % |
| A113805 | Numbers that are congruent to {5, 9} mod 14 | residue class | 29.2 % |
| A113806 | Numbers that are congruent to {6, 8} mod 14 | residue class | 18.0 % |
| A114211 | a(n) = (5*n^3+12*n^2+n+6)/6 | polynomial | 100.0 % |
| A114269 | Numbers k such that k^2 + 6 is prime | prime values | 35.3 % |
| A114270 | Numbers k such that k^2 + 7 is prime | prime values | 19.2 % |
| A114271 | Numbers k such that k^2 + 8 is prime | prime values | 28.9 % |
| A114272 | Numbers k such that k^2 + 9 is prime | prime values | 23.3 % |
| A114273 | Numbers k such that k^2 + 10 is prime | prime values | 32.7 % |
| A114274 | Numbers k such that k^2 + 11 is prime | prime values | 23.3 % |
| A114275 | Numbers k such that k^2 + 12 is prime | prime values | 30.1 % |
| A114364 | a(n) = n*(n+1)^2 | polynomial | 100.0 % |
| A114444 | a(n) = 16*n*(n+2) | polynomial | 100.0 % |
| A114948 | a(n) = n^2 + 10 | polynomial | 100.0 % |
| A114949 | a(n) = n^2 + 6 | polynomial | 100.0 % |
| A114962 | a(n) = n^2 + 14 | polynomial | 100.0 % |
| A114963 | a(n) = n^2 + 22 | polynomial | 100.0 % |
| A114964 | a(n) = n^2 + 30 | polynomial | 100.0 % |
| A114965 | a(n) = n^2 + 34 | polynomial | 100.0 % |
| A115067 | a(n) = (3*n^2 - n - 2)/2 | polynomial | 100.0 % |
| A115519 | a(n) = n*(1+3*n+6*n^2)/2 | polynomial | 100.0 % |
| A116668 | a(n) = (5*n^2 + n + 2)/2 | polynomial | 100.0 % |
| A117047 | Primes of the form 60*k + 11 | primes | 52.7 % |
| A117048 | Prime numbers that are expressible as the sum of two positive triangular numbers | primes | 34.5 % |
| A117049 | Primes of the form 22*(n^2)+1 | primes | 100.0 % |
| A117560 | a(n) = n*(n^2 - 1)/2 - 1 | polynomial | 100.0 % |
| A117619 | a(n) = n^2 + 7 | polynomial | 100.0 % |
| A117642 | a(n) = 3*n^3 | polynomial | 100.0 % |
| A117804 | Natural position of n in the string 12345678910111213... | digit rule | 10.7 % |
| A117950 | a(n) = n^2 + 3 | polynomial | 100.0 % |
| A117951 | a(n) = n^2 + 5 | polynomial | 100.0 % |
| A118057 | a(n) = 8*n^2 - 4*n - 3 | polynomial | 100.0 % |
| A118058 | a(n) = 49n^2 - 28n - 20 | polynomial | 100.0 % |
| A118059 | a(n) = 288*n^2 - 168*n - 119 | polynomial | 100.0 % |
| A118060 | a(n) = 1681*n^2 - 984*n - 696 | polynomial | 100.0 % |
| A118061 | a(n) = 9800*n^2-5740*n-4059 | polynomial | 100.0 % |
| A118134 | Primes p such that 4p is the sum of two consecutive primes | primes | 46.7 % |
| A118363 | Factorial base Niven (or Harshad) numbers: numbers that are divisible by the sum of their factorial base digits | digit rule | 22.4 % |
| A118465 | a(n) = 8*n^3 + n | polynomial | 100.0 % |
| A118882 | Numbers which are the sum of two squares in two or more different ways | quadratic form | 19.9 % |
| A118886 | Numbers expressible as x^2 + x*y + y^2, 0 <= x <= y, in 2 or more ways | quadratic form | 29.3 % |
| A118922 | Primes for which the weight as defined in A117078 is 9 and the gap as defined in A001223 is 8 | primes | 57.0 % |
| A118950 | Numbers containing at least one prime digit | digit rule | 10.2 % |
| A118951 | Numbers containing at least one composite digit | digit rule | 9.9 % |
| A118954 | Numbers that cannot be written as 2^k + prime | primes | 8.6 % |
| A118955 | Numbers of the form 2^k + prime | primes | 32.2 % |
| A119409 | Numbers k such that 235*k + 1 is prime | prime values | 23.1 % |
| A119412 | a(n) = n*(n+11) | polynomial | 100.0 % |
| A119449 | Primes with even digit sum | primes | 28.4 % |
| A119536 | a(n) = 3*n^3 + 3*n | polynomial | 100.0 % |
| A119735 | Numbers n such that every digit occurs at least once in n^3 | digit rule | 20.2 % |
| A120071 | a(n) = n*(n+20) | polynomial | 100.0 % |
| A120330 | Primes not congruent to +- 1, 3, or 4 (mod 13) | primes | 30.8 % |
| A120344 | Numbers k such that 23*k + 1 is a prime | prime values | 23.1 % |
| A120345 | Numbers n such that 2357*n + 1 is prime | prime values | 25.2 % |
| A120944 | Composite squarefree numbers | multiplicative | 11.9 % |
| A121022 | Even numbers containing a 2 in their decimal representation | digit rule | 11.5 % |
| A121030 | Multiples of 10 containing a 10 in their decimal representation | digit rule | 24.3 % |
| A121032 | Multiples of 12 containing a 12 in their decimal representation | digit rule | 19.6 % |
| A121068 | Numbers k such that 8*k^2 + 7 is prime | prime values | 24.4 % |
| A121250 | Numbers n such that n^2 + 14 is prime | prime values | 34.2 % |
| A121283 | a(n) = floor(n*Pi*e) | Beatty | 23.7 % |
| A121495 | Numbers k such that k and k+1 are composite and squarefree | multiplicative | 16.2 % |
| A121539 | Numbers whose binary expansion ends in an even number of 1's | binary rule | 12.0 % |
| A121817 | Numbers m such that 23 + 36*m*(m+1) is prime | prime values | 23.3 % |
| A121982 | Numbers k such that k^2 + 15 is prime | prime values | 18.3 % |
| A122062 | Numbers k such that k^2 + 16 is prime | prime values | 33.3 % |
| A122094 | Prime divisors of Mersenne numbers. Primes p such that the multiplicative order of 2 modulo p is prime | primes | 48.9 % |
| A122114 | Primes of the form 2n^2 + 26n + 1 | primes | 100.0 % |
| A122430 | Primes of the form 1+2*n+3*n^2 | primes | 100.0 % |
| A122482 | Primes p such that 1 + 4p + 12p^2 is prime | primes | 49.0 % |
| A122488 | Numbers k such that 1 + 2k + 3k^2 is semiprime | multiplicative | 17.7 % |
| A122535 | Smallest prime of a triple of successive primes, where the middle one is the arithmetic mean of the other two | primes | 46.5 % |
| A122562 | a(n) = n^3 + 114 * n | polynomial | 100.0 % |
| A122870 | Primes congruent to 3 or 7 mod 20 | primes | 37.2 % |
| A123017 | Semiprimes k such that k+3 is also a semiprime | multiplicative | 23.4 % |
| A123193 | Natural numbers with number of divisors equal to a Fibonacci number | divisor functions | 14.0 % |
| A123239 | Primes that do not divide 3^k - 2 for any k | primes | 29.9 % |
| A124127 | Numbers k such that 17k + 1 is prime | prime values | 23.1 % |
| A124198 | Numbers k such that 21*k + 1 is prime | prime values | 18.6 % |
| A124204 | Numbers k such that 20*k + 1 is prime | prime values | 21.3 % |
| A124268 | Primes indexed by 3-almost primes | primes | 33.2 % |
| A124269 | 3-almost primes indexed by primes | multiplicative | 33.6 % |
| A124282 | Primes indexed by 4-almost primes | primes | 35.2 % |
| A124283 | 4-almost primes indexed by primes | multiplicative | 33.7 % |
| A124594 | Primes p such that q-p = 26, where q is the next prime after p | primes | 56.8 % |
| A124595 | Primes p such that q-p = 28, where q is the next prime after p | primes | 56.0 % |
| A124596 | Primes p such that q-p = 30, where q is the next prime after p | primes | 47.3 % |
| A124826 | Primes congruent to 1 mod 21 | primes | 49.9 % |
| A124940 | Numbers k such that k and k+3 are 3-almost primes | multiplicative | 23.0 % |
| A124941 | Numbers k such that k and k+4 are 4-almost primes | multiplicative | 26.2 % |
| A125022 | Numbers with a unique partition as the sum of 2 squares x^2 + y^2 | quadratic form | 18.1 % |
| A125200 | a(n) = n*(4*n^2 + n - 1)/2 | polynomial | 100.0 % |
| A125201 | a(n) = 8*n^2 - 7*n + 1 | polynomial | 100.0 % |
| A125272 | Primes p such that 3p - 2 and 3p + 2 are also primes | primes | 56.7 % |
| A125308 | Primes having only {0, 1, 3, 8} as digits | primes | 32.3 % |
| A125830 | Primes for which the level is equal to 1 in A117563 | primes | 49.8 % |
| A126148 | Primes p such that pq+p+q is prime, where q is the next prime after p | primes | 42.1 % |
| A126264 | a(n) = 5*n^2 + 3*n | polynomial | 100.0 % |
| A126332 | Numbers k such that 10k + 13 is prime | prime values | 20.8 % |
| A126335 | a(n) = n*(4*n^2+5*n-3)/2 | polynomial | 100.0 % |
| A126721 | Primes p such that q-p = 40, where q is the next prime after p | primes | 60.4 % |
| A126784 | Primes p such that q-p = 32, where q is the next prime after p | primes | 60.1 % |
| A126785 | Numbers k such that 10*k + 11 is prime | prime values | 21.0 % |
| A126960 | Primes p such that (3p)^2 + 2 is prime | primes | 38.5 % |
| A126964 | a(n) = 2*n*(6*n-1) | polynomial | 100.0 % |
| A127316 | a(n) = 2*n^2 - 4*n + 73 | polynomial | 100.0 % |
| A127333 | Numbers that are the sum of 6 consecutive primes | primes | 34.3 % |
| A127334 | Numbers that are the sum of 7 consecutive primes | primes | 44.2 % |
| A127336 | Numbers that are the sum of 9 consecutive primes | primes | 45.9 % |
| A127337 | Numbers that are the sum of 10 consecutive primes | primes | 37.6 % |
| A127338 | Numbers that are the sum of 11 consecutive primes | primes | 47.4 % |
| A127339 | Numbers that are the sum of 12 consecutive primes | primes | 39.0 % |
| A127340 | Primes that are the sum of 11 consecutive primes | primes | 56.2 % |
| A127341 | Primes that can be written as the sum of 13 consecutive primes | primes | 57.6 % |
| A127435 | Primes p such that (p-1)^2 + 1 is prime | primes | 42.8 % |
| A127575 | Numbers n such that 16n+15 is prime | prime values | 16.2 % |
| A127576 | Primes of the form 16n+15 | primes | 38.3 % |
| A127578 | Primes congruent to 31 mod 32 | primes | 43.2 % |
| A127579 | Primes of the form 64n+63 | primes | 47.8 % |
| A127580 | Numbers k such that 64k+63 is prime | prime values | 17.6 % |
| A127589 | Primes of the form 16k + 5 | primes | 38.5 % |
| A127590 | Numbers n such that 16n+5 is prime | prime values | 21.2 % |
| A127591 | Numbers k such that 64k+21 is prime | prime values | 17.4 % |
| A127592 | Primes of the form 64k+21 | primes | 47.7 % |
| A127593 | Primes of the form 256 k + 85 | primes | 58.3 % |
| A127594 | Numbers k such that 256 k + 85 is prime | prime values | 22.3 % |
| A127736 | a(n) = n*(n^2 + 2*n - 1)/2 | polynomial | 100.0 % |
| A127989 | a(n) = 2*n^3 - 2*n + 9 | polynomial | 100.0 % |
| A128464 | Numbers that are congruent to {11, 17, 29} mod 30 | residue class | 30.6 % |
| A128829 | Numbers k such that 6*k^2 + 17 is prime | prime values | 17.6 % |
| A128928 | Smallest member p of a triple of primes (p,p+8,p+20) | primes | 60.2 % |
| A129484 | Primes of the form 17k + 1 | primes | 44.5 % |
| A129805 | Primes congruent to +-1 mod 18 | primes | 32.4 % |
| A129806 | Primes congruent to +-5 mod 18 | primes | 34.4 % |
| A129807 | Primes congruent to +-7 mod 18 | primes | 33.7 % |
| A129845 | Numbers n such that n and 2n share at least one digit | digit rule | 9.8 % |
| A130091 | Numbers having in their canonical prime factorization mutually distinct exponents | multiplicative | 17.0 % |
| A130861 | a(n) = (n-1)*(2*n+5) | polynomial | 100.0 % |
| A130862 | a(n) = (n-1)*(n+2)*(2*n+11)/2 | polynomial | 100.0 % |
| A130877 | Numbers that are congruent to {0, 5} mod 9 | residue class | 24.2 % |
| A130883 | a(n) = 2*n^2 - n + 1 | polynomial | 100.0 % |
| A130884 | a(n) = 3n^3 + 2n^2 + n + 1 | polynomial | 100.0 % |
| A130885 | a(n) = 3n^3 - 2n^2 + n - 1 | polynomial | 100.0 % |
| A131210 | Numbers k such that 24k - 1 is prime | prime values | 18.5 % |
| A131229 | Numbers congruent to {1,7} mod 10 | residue class | 23.8 % |
| A131323 | Odd numbers whose binary expansion ends in an even number of 1's | binary rule | 25.6 % |
| A131464 | a(n) = 4*n^3 - 3*n^2 + 2*n - 1 | polynomial | 100.0 % |
| A131645 | Beastly primes (version 2): primes containing 666 as a substring | primes | 32.6 % |
| A131835 | Numbers starting with 1 | digit rule | 8.7 % |
| A131874 | a(n) = (7*n^2 + 15*n + 2) / 2 | polynomial | 100.0 % |
| A131878 | a(n) = 7*n^2 + 14*n + 1 | polynomial | 100.0 % |
| A131895 | a(n) = (n + 2)*(5*n + 1)/2 | polynomial | 100.0 % |
| A132112 | a(n) = n*(n+1)*(11*n+1)/6 | polynomial | 100.0 % |
| A132124 | a(n) = n*(n+1)*(8*n + 1)/6 | polynomial | 100.0 % |
| A132127 | a(n) = (n^3 + 3*n - 2)/2 | polynomial | 100.0 % |
| A132190 | Numbers n such that 7*n^2 + 1 is prime | prime values | 19.2 % |
| A132208 | a(n) = 15*n*(n+1) + 11 | polynomial | 100.0 % |
| A132230 | Primes congruent to 1 (mod 30) | primes | 48.3 % |
| A132231 | Primes congruent to 7 (mod 30) | primes | 48.5 % |
| A132232 | Primes congruent to 11 (mod 30) | primes | 48.5 % |
| A132233 | Primes congruent to 13 (mod 30) | primes | 48.3 % |
| A132234 | Primes congruent to 19 (mod 30) | primes | 48.4 % |
| A132235 | Primes congruent to 23 (mod 30) | primes | 48.4 % |
| A132236 | Primes congruent to 29 (mod 30) | primes | 48.7 % |
| A132237 | Primes congruent to {7, 23} mod 30 | primes | 38.0 % |
| A132238 | Primes congruent to {11, 13} mod 30 | primes | 31.0 % |
| A132239 | Primes congruent to {17, 19} mod 30 | primes | 32.9 % |
| A132240 | Primes congruent to {1, 29} mod 30 | primes | 35.7 % |
| A132359 | Numbers divisible by the square of their last decimal digit | digit rule | 22.0 % |
| A132398 | Numbers n such that 11*n^2 + 1 is prime | prime values | 23.9 % |
| A132754 | a(n) = n*(n + 23)/2 | polynomial | 100.0 % |
| A132755 | a(n) = n*(n + 25)/2 | polynomial | 100.0 % |
| A132756 | a(n) = n*(n + 27)/2 | polynomial | 100.0 % |
| A132757 | a(n) = n*(n+29)/2 | polynomial | 100.0 % |
| A132758 | a(n) = n*(n + 31)/2 | polynomial | 100.0 % |
| A132759 | a(n) = n*(n+13) | polynomial | 100.0 % |
| A132760 | a(n) = n*(n+15) | polynomial | 100.0 % |
| A132761 | a(n) = n*(n+17) | polynomial | 100.0 % |
| A132762 | a(n) = n*(n + 19) | polynomial | 100.0 % |
| A132763 | a(n) = n*(n+21) | polynomial | 100.0 % |
| A132764 | a(n) = n*(n+22) | polynomial | 100.0 % |
| A132765 | a(n) = n*(n + 23) | polynomial | 100.0 % |
| A132766 | a(n) = n*(n+24) | polynomial | 100.0 % |
| A132767 | a(n) = n*(n + 25) | polynomial | 100.0 % |
| A132768 | a(n) = n*(n + 26) | polynomial | 100.0 % |
| A132769 | a(n) = n*(n + 27) | polynomial | 100.0 % |
| A132770 | a(n) = n*(n + 28) | polynomial | 100.0 % |
| A132771 | a(n) = n*(n + 29) | polynomial | 100.0 % |
| A132772 | a(n) = n*(n + 30) | polynomial | 100.0 % |
| A132773 | a(n) = n*(n + 31) | polynomial | 100.0 % |
| A133157 | Numbers k such that k^2 + k - 41 is prime | prime values | 27.0 % |
| A133496 | a(n) = (29*n)^2 | polynomial | 100.0 % |
| A133694 | a(n) = (3*n^2 + 3*n - 4)/2 | polynomial | 100.0 % |
| A133765 | Primes that contain the digit 4 or the digit 9 | primes | 24.8 % |
| A133783 | Primes containing only digits from set {1,2,3,4,5,6} | primes | 28.5 % |
| A133869 | Numbers k such that 32*k + 1 is prime | prime values | 24.0 % |
| A133870 | Primes of the form 32*n + 1 | primes | 43.2 % |
| A134027 | Nonnegative numbers that are palindromes in balanced ternary representation | digit rule | 93.8 % |
| A134116 | Primes p such that q-p = 34, where q is the next prime after p | primes | 60.1 % |
| A134117 | Primes p such that q-p = 36, where q is the next prime after p | primes | 51.6 % |
| A134118 | Primes p such that q - p = 38, where q is the next prime after p | primes | 61.9 % |
| A134120 | Primes p such that q-p = 42, where q is the next prime after p | primes | 53.2 % |
| A134121 | Primes p such that q-p = 44, where q is the next prime after p | primes | 64.0 % |
| A134122 | Primes p such that q-p = 46, where q is the next prime after p | primes | 65.4 % |
| A134123 | Primes p such that q-p = 48, where q is the next prime after p | primes | 56.6 % |
| A134124 | Primes p such that q-p = 50, where q is the next prime after p | primes | 65.2 % |
| A134153 | a(n) = 15*n^2 + 9*n + 1 | polynomial | 100.0 % |
| A134154 | a(n) = 15*n^2 - 9*n + 1 | polynomial | 100.0 % |
| A134333 | Numbers n whose number of prime factors (counted with multiplicity) is a prime factor of n | multiplicative | 17.3 % |
| A134334 | Numbers which are not divisible by the number of their prime factors (counted with multiplicity) | multiplicative | 10.8 % |
| A134344 | Composite numbers such that the arithmetic mean of their prime factors (counted with multiplicity) is prime | multiplicative | 30.3 % |
| A134376 | Numbers whose sum of prime factors (counted with multiplicity) is not prime | multiplicative | 10.6 % |
| A134517 | Primes of the form 24*k - 1 | primes | 44.4 % |
| A134538 | a(n) = 5*n^2 - 1 | polynomial | 100.0 % |
| A134547 | a(n) = 5*n^2 + 20*n + 4 | polynomial | 100.0 % |
| A134582 | a(n) = (2*n)^2 - 4 | polynomial | 100.0 % |
| A134616 | Numbers such that the sum of squares of their prime factors (taken with multiplicity) is a prime | multiplicative | 24.7 % |
| A134617 | Numbers such that the arithmetic mean of the squares of their prime factors (taken with multiplicity) is a prime | multiplicative | 29.3 % |
| A134618 | Numbers such that the sum of cubes of their prime factors (taken with multiplicity) is a prime | multiplicative | 28.3 % |
| A134619 | Numbers such that the arithmetic mean of the cubes of their prime factors (taken with multiplicity) is a prime | multiplicative | 39.5 % |
| A134671 | Primes of the form 2m*691 - 1 | primes | 73.2 % |
| A134809 | Cyclops primes | primes | 20.3 % |
| A134934 | a(n) = (14*n+1)^2 | polynomial | 100.0 % |
| A135453 | a(n) = 12*n^2 | polynomial | 100.0 % |
| A135628 | Multiples of 28 | residue class | 9.6 % |
| A135631 | Multiples of 31 | residue class | 9.7 % |
| A135703 | a(n) = n*(7*n-2) | polynomial | 100.0 % |
| A135706 | a(n) = n*(5*n-3) | polynomial | 100.0 % |
| A135712 | a(n) = (4*n^3 + 11*n^2 + 9*n + 2)/2 | polynomial | 100.0 % |
| A135713 | a(n) = n*(n+1)*(4*n+1)/2 | polynomial | 100.0 % |
| A136016 | a(n) = 9*n^2-1 | polynomial | 100.0 % |
| A136017 | a(n) = 36n^2 - 1 | polynomial | 100.0 % |
| A136051 | Primes p such that 5*p-4 is also prime | primes | 45.6 % |
| A136072 | Primes of the form 7*p + 6 with p prime | primes | 50.8 % |
| A136260 | Primes which contain the digit 2 or the digit 3 | primes | 24.3 % |
| A136333 | Numbers containing only digits coprime to 10 in their decimal representation | digit rule | 17.5 % |
| A136392 | a(n) = 6*n^2 - 10*n + 5 | polynomial | 100.0 % |
| A136773 | n! never ends in this many 0's in base 13 | powers | 25.9 % |
| A137238 | Primes which contain the digit 1 or the digit 2 | primes | 24.1 % |
| A137270 | Primes p such that p^2 - 6 is also prime | primes | 44.9 % |
| A137487 | Numbers with 24 divisors | multiplicative | 20.9 % |
| A137491 | Numbers with 28 divisors | multiplicative | 25.5 % |
| A137493 | Numbers with 30 divisors | multiplicative | 36.0 % |
| A137530 | Primes of the form 5k^2 + 1 | primes | 100.0 % |
| A137977 | Primes congruent to {0, 2, 4, 6, 8, 10} modulo 11 | primes | 28.5 % |
| A137978 | Primes congruent to {1, 3, 5, 7, 9} modulo 11 | primes | 28.2 % |
| A138218 | Numbers k such that 180k^2 + 1 is prime | prime values | 20.7 % |
| A138220 | Numbers k such that 900*k^2 + 1 is prime | prime values | 19.7 % |
| A138338 | Primes of the form n^2+8 | primes | 100.0 % |
| A138353 | Primes of the form k^2 + 9 | primes | 100.0 % |
| A138355 | Primes of the form k^2 + 10 | primes | 100.0 % |
| A138362 | Primes of the form k^2 + 11 | primes | 100.0 % |
| A138368 | Primes of the form k^2 + 12 | primes | 100.0 % |
| A138375 | Primes of the form k^2 + 13 | primes | 100.0 % |
| A138511 | Semiprimes where the larger prime factor is greater than the square of the smaller prime factor, short: semiprimes p*q, p^2 < q | multiplicative | 18.2 % |
| A138623 | Primes congruent to 5 mod 17 | primes | 44.4 % |
| A138625 | Primes congruent to 12 mod 17 | primes | 44.4 % |
| A138627 | Primes congruent to 10 mod 17 | primes | 44.3 % |
| A138629 | Primes of form 17*n+7 | primes | 44.4 % |
| A138631 | Primes of the form 17*k + 9 | primes | 44.5 % |
| A138633 | Primes of the form 17*k - 9 | primes | 44.6 % |
| A138638 | Primes of form 19*n-1 | primes | 45.0 % |
| A138640 | Primes of form 19*n-2 | primes | 45.0 % |
| A138642 | Primes of form 19*n-3 | primes | 45.1 % |
| A138918 | Numbers n such that 18n-1 is prime | prime values | 18.8 % |
| A139098 | a(n) = 8*n^2 | polynomial | 100.0 % |
| A139271 | a(n) = 2*n*(4*n-3) | polynomial | 100.0 % |
| A139272 | a(n) = n*(8*n-5) | polynomial | 100.0 % |
| A139273 | a(n) = n*(8*n - 3) | polynomial | 100.0 % |
| A139274 | a(n) = n*(8*n-1) | polynomial | 100.0 % |
| A139275 | a(n) = n*(8*n+1) | polynomial | 100.0 % |
| A139276 | a(n) = n*(8*n+3) | polynomial | 100.0 % |
| A139277 | a(n) = n*(8*n+5) | polynomial | 100.0 % |
| A139278 | a(n) = n*(8*n+7) | polynomial | 100.0 % |
| A139483 | Numbers k such that 24*k + 7 is prime | prime values | 18.0 % |
| A139487 | Numbers k such that 8k + 7 is prime | prime values | 22.2 % |
| A139489 | Primes of the form x^2+101y^2 | quadratic form | 46.9 % |
| A139513 | Primes congruent to {1, 3, 7, 9} mod 20 | primes | 28.1 % |
| A139528 | Numbers k such that 24*k + 11 is prime | prime values | 18.2 % |
| A139529 | Numbers k such that 24*k + 13 is prime | prime values | 18.3 % |
| A139530 | Primes of the form 24*k + 13 | primes | 44.7 % |
| A139531 | Numbers k such that 24*k + 17 is prime | prime values | 18.7 % |
| A139532 | Numbers k such that 24*k + 19 is prime | prime values | 18.5 % |
| A139570 | a(n) = 2*n*(n+3) | polynomial | 100.0 % |
| A139576 | a(n) = n*(2*n + 9) | polynomial | 100.0 % |
| A139577 | a(n) = n*(2*n + 11) | polynomial | 100.0 % |
| A139578 | a(n) = n*(2*n + 13) | polynomial | 100.0 % |
| A139579 | a(n) = 2*n^2 + 15*n | polynomial | 100.0 % |
| A139580 | a(n) = n*(2*n + 17) | polynomial | 100.0 % |
| A139581 | a(n) = n*(2*n + 19) | polynomial | 100.0 % |
| A139639 | Numbers n such that 168n+31 is prime | prime values | 18.2 % |
| A139644 | Primes of the form x^2 + 105*y^2 | quadratic form | 49.4 % |
| A139645 | Primes of the form x^2 + 112*y^2 | quadratic form | 35.2 % |
| A139646 | Primes of the form x^2 + 130*y^2 | quadratic form | 43.5 % |
| A139647 | Primes of the form x^2 + 133*y^2 | quadratic form | 36.9 % |
| A139648 | Primes of the form x^2 + 165*y^2 | quadratic form | 53.6 % |
| A139649 | Primes of the form x^2 + 177*y^2 | quadratic form | 44.6 % |
| A139650 | Primes of the form x^2 + 190*y^2 | quadratic form | 42.9 % |
| A139651 | Primes of the form x^2 + 210*y^2 | quadratic form | 48.7 % |
| A139652 | Primes of the form x^2 + 232*y^2 | quadratic form | 39.1 % |
| A139653 | Primes of the form x^2 + 253*y^2 | quadratic form | 39.2 % |
| A139654 | Primes of the form x^2+273y^2 | quadratic form | 47.7 % |
| A139655 | Primes of the form x^2 + 280*y^2 | quadratic form | 43.7 % |
| A139656 | Primes of the form x^2 + 312*y^2 | quadratic form | 50.3 % |
| A139657 | Primes of the form x^2 + 330*y^2 | quadratic form | 53.9 % |
| A139658 | Primes of the form x^2 + 345*y^2 | quadratic form | 51.2 % |
| A139659 | Primes of the form x^2 + 357*y^2 | quadratic form | 44.8 % |
| A139660 | Primes of the form x^2 + 385*y^2 | quadratic form | 46.2 % |
| A139661 | Primes of the form x^2 + 408*y^2 | quadratic form | 47.4 % |
| A139662 | Primes of the form x^2 + 462*y^2 | quadratic form | 48.4 % |
| A139663 | Primes of the form x^2 + 520*y^2 | quadratic form | 47.9 % |
| A139664 | Primes of the form x^2 + 760*y^2 | quadratic form | 47.8 % |
| A139665 | Primes of the form x^2 + 840*y^2 | quadratic form | 53.5 % |
| A139666 | Primes of the form x^2 + 1320*y^2 | quadratic form | 58.6 % |
| A139667 | Primes of the form x^2 + 1365*y^2 | quadratic form | 55.6 % |
| A139668 | Primes of the form x^2 + 1848*y^2 | quadratic form | 53.0 % |
| A139757 | a(n) = (n+1)*(2n+1)^2 | polynomial | 100.0 % |
| A139841 | Primes of the form 2x^2 + 51y^2 | quadratic form | 42.7 % |
| A139842 | Primes of the form 3x^2 + 34y^2 | quadratic form | 42.7 % |
| A139843 | Primes of the form 6x^2 + 17y^2 | quadratic form | 42.7 % |
| A139845 | Primes of the form 3x^2 + 35y^2 | quadratic form | 50.6 % |
| A139846 | Primes of the form 5x^2 + 21y^2 | quadratic form | 49.8 % |
| A139848 | Primes of the form 7x^2 + 15y^2 | quadratic form | 48.5 % |
| A139852 | Primes of the form 7x^2 + 16y^2 | quadratic form | 35.3 % |
| A139854 | Primes of the form 3x^2 + 40y^2 | quadratic form | 52.4 % |
| A139856 | Primes of the form 5x^2 + 24y^2 | quadratic form | 52.9 % |
| A139857 | Primes of the form 8x^2 + 15y^2 | quadratic form | 52.4 % |
| A139861 | Primes of the form 2x^2 + 65y^2 | quadratic form | 43.5 % |
| A139862 | Primes of the form 5x^2 + 26y^2 | quadratic form | 43.9 % |
| A139863 | Primes of the form 10x^2 + 13y^2 | quadratic form | 43.3 % |
| A139865 | Primes of the form 7x^2 + 19y^2 | quadratic form | 36.6 % |
| A139868 | Primes of the form 3x^2 + 55y^2 | quadratic form | 54.3 % |
| A139869 | Primes of the form 5x^2 + 33y^2 | quadratic form | 54.3 % |
| A139872 | Primes of the form 11x^2 + 15y^2 | quadratic form | 53.7 % |
| A139874 | Primes of the form 3x^2 + 56y^2 | quadratic form | 45.8 % |
| A139876 | Primes of the form 7x^2+24y^2 | quadratic form | 45.8 % |
| A139877 | Primes of the form 8x^2+21y^2 | quadratic form | 46.7 % |
| A139882 | Primes of the form 3x^2+59y^2 | quadratic form | 44.7 % |
| A139884 | Primes of the form 2x^2+95y^2 | quadratic form | 43.1 % |
| A139885 | Primes of the form 5x^2+38y^2 | quadratic form | 43.4 % |
| A139886 | Primes of the form 10x^2 + 19y^2 | quadratic form | 43.0 % |
| A139887 | Primes of the form 2x^2+105y^2 | quadratic form | 49.9 % |
| A139888 | Primes of the form 3x^2+70y^2 | quadratic form | 48.7 % |
| A139889 | Primes of the form 5x^2+42y^2 | quadratic form | 48.8 % |
| A139890 | Primes of the form 6x^2+35y^2 | quadratic form | 50.7 % |
| A139891 | Primes of the form 7x^2+30y^2 | quadratic form | 50.0 % |
| A139892 | Primes of the form 10x^2+21y^2 | quadratic form | 50.6 % |
| A139893 | Primes of the form 14x^2+15y^2 | quadratic form | 49.0 % |
| A139895 | Primes of the form 8x^2+29y^2 | quadratic form | 39.7 % |
| A139897 | Primes of the form 3*x^2+80*y^2 | quadratic form | 52.2 % |
| A139899 | Primes of the form 5x^2+48y^2 | quadratic form | 52.4 % |
| A139904 | Primes of the form 2x^2+2xy+127y^2 | quadratic form | 39.5 % |
| A139905 | Primes of the form 11x^2+23y^2 | quadratic form | 39.1 % |
| A139908 | Primes of the form 3x^2+91y^2 | quadratic form | 47.6 % |
| A139910 | Primes of the form 7x^2+39y^2 | quadratic form | 47.5 % |
| A139911 | Primes of the form 13x^2+21y^2 | quadratic form | 47.6 % |
| A139915 | Primes of the form 5x^2+56y^2 | quadratic form | 44.4 % |
| A139916 | Primes of the form 7x^2+40y^2 | quadratic form | 43.2 % |
| A139917 | Primes of the form 8x^2+35y^2 | quadratic form | 43.8 % |
| A139921 | Primes of the form 3x^2+104y^2 | quadratic form | 50.1 % |
| A139923 | Primes of the form 8x^2+39y^2 | quadratic form | 50.9 % |
| A139926 | Primes of the form 13x^2+24y^2 | quadratic form | 50.6 % |
| A139928 | Primes of the form 2x^2+165y^2 | quadratic form | 53.5 % |
| A139929 | Primes of the form 3x^2+110y^2 | quadratic form | 53.3 % |
| A139930 | Primes of the form 5x^2+66y^2 | quadratic form | 54.2 % |
| A139931 | Primes of the form 6x^2+55y^2 | quadratic form | 54.2 % |
| A139932 | Primes of the form 10x^2+33y^2 | quadratic form | 53.3 % |
| A139933 | Primes of the form 11x^2+30y^2 | quadratic form | 54.0 % |
| A139934 | Primes of the form 15x^2+22y^2 | quadratic form | 53.5 % |
| A139936 | Primes of the form 3x^2+115y^2 | quadratic form | 51.6 % |
| A139937 | Primes of the form 5x^2+69y^2 | quadratic form | 50.9 % |
| A139940 | Primes of the form 15*x^2+23*y^2 | quadratic form | 51.1 % |
| A139943 | Primes of the form 3x^2+119y^2 | quadratic form | 45.6 % |
| A139945 | Primes of the form 7x^2+51y^2 | quadratic form | 44.9 % |
| A139947 | Primes of the form 17x^2+21y^2 | quadratic form | 44.4 % |
| A139950 | Primes of the form 5x^2+77y^2 | quadratic form | 45.7 % |
| A139951 | Primes of the form 7x^2+55y^2 | quadratic form | 45.9 % |
| A139953 | Primes of the form 11x^2+35y^2 | quadratic form | 46.2 % |
| A139956 | Primes of the form 3x^2+136y^2 | quadratic form | 47.7 % |
| A139958 | Primes of the form 8x^2+51y^2 | quadratic form | 47.1 % |
| A139961 | Primes of the form 17x^2+24y^2 | quadratic form | 47.9 % |
| A139963 | Primes of the form 2x^2+231y^2 | quadratic form | 48.5 % |
| A139964 | Primes of the form 3x^2+154y^2 | quadratic form | 47.3 % |
| A139965 | Primes of the form 6x^2+77y^2 | quadratic form | 47.4 % |
| A139966 | Primes of the form 7x^2+66y^2 | quadratic form | 47.3 % |
| A139967 | Primes of the form 11x^2+42y^2 | quadratic form | 48.4 % |
| A139968 | Primes of the form 14x^2+33y^2 | quadratic form | 47.4 % |
| A139969 | Primes of the form 21x^2+22y^2 | quadratic form | 48.4 % |
| A139971 | Primes of the form 5x^2+104y^2 | quadratic form | 48.6 % |
| A139972 | Primes of the form 8x^2+65y^2 | quadratic form | 47.9 % |
| A139974 | Primes of the form 13x^2+40y^2 | quadratic form | 48.1 % |
| A139978 | Primes of the form 5x^2+152y^2 | quadratic form | 47.7 % |
| A139979 | Primes of the form 8x^2+95y^2 | quadratic form | 47.8 % |
| A139981 | Primes of the form 19x^2+40y^2 | quadratic form | 47.6 % |
| A139984 | Primes of the form 3x^2+280y^2 | quadratic form | 54.3 % |
| A139985 | Primes of the form 4x^2+4xy+211y^2 | quadratic form | 53.6 % |
| A139986 | Primes of the form 5x^2+168y^2 | quadratic form | 54.4 % |
| A139987 | Primes of the form 7x^2+120y^2 | quadratic form | 54.5 % |
| A139988 | Primes of the form 8x^2+105y^2 | quadratic form | 54.5 % |
| A139991 | Primes of the form 15x^2+56y^2 | quadratic form | 53.7 % |
| A139993 | Primes of the form 21x^2+40y^2 | quadratic form | 54.9 % |
| A139994 | Primes of the form 24x^2+35y^2 | quadratic form | 55.0 % |
| A139999 | Primes of the form 3x^2+440y^2 | quadratic form | 58.3 % |
| A140001 | Primes of the form 5x^2+264y^2 | quadratic form | 58.7 % |
| A140002 | Primes of the form 8*x^2 + 165*y^2 | quadratic form | 58.4 % |
| A140004 | Primes of the form 11x^2+120y^2 | quadratic form | 58.9 % |
| A140006 | Primes of the form 15x^2+88y^2 | quadratic form | 58.2 % |
| A140008 | Primes of the form 24x^2+55y^2 | quadratic form | 58.8 % |
| A140010 | Primes of the form 33x^2+40y^2 | quadratic form | 58.3 % |
| A140015 | Primes of the form 3x^2+455y^2 | quadratic form | 56.1 % |
| A140016 | Primes of the form 5x^2+273y^2 | quadratic form | 56.1 % |
| A140018 | Primes of the form 7x^2+195y^2 | quadratic form | 56.3 % |
| A140020 | Primes of the form 13x^2+105y^2 | quadratic form | 56.0 % |
| A140022 | Primes of the form 15x^2+91y^2 | quadratic form | 55.9 % |
| A140023 | Primes of the form 21x^2+65y^2 | quadratic form | 56.2 % |
| A140026 | Primes of the form 35x^2+39y^2 | quadratic form | 55.5 % |
| A140029 | Primes of the form 3x^2+616y^2 | quadratic form | 52.3 % |
| A140031 | Primes of the form 7x^2+264y^2 | quadratic form | 52.4 % |
| A140032 | Primes of the form 8x^2+231y^2 | quadratic form | 53.3 % |
| A140034 | Primes of the form 11x^2+168y^2 | quadratic form | 52.7 % |
| A140036 | Primes of the form 21x^2+88y^2 | quadratic form | 53.0 % |
| A140037 | Primes of the form 24x^2+77y^2 | quadratic form | 52.2 % |
| A140040 | Primes of the form 33x^2+56y^2 | quadratic form | 52.1 % |
| A140065 | a(n) = (7*n^2 - 17*n + 12)/2 | polynomial | 100.0 % |
| A140066 | a(n) = (5*n^2 - 11*n + 8)/2 | polynomial | 100.0 % |
| A140090 | a(n) = n*(3*n + 7)/2 | polynomial | 100.0 % |
| A140091 | a(n) = 3*n*(n + 3)/2 | polynomial | 100.0 % |
| A140371 | Primes of the form 26k + 7 | primes | 42.8 % |
| A140372 | Primes of the form 26k + 9 | primes | 43.0 % |
| A140373 | Primes of the form 26*n+11 | primes | 42.9 % |
| A140374 | Primes of the form 26k + 15 | primes | 42.9 % |
| A140375 | Primes of the form 26n+23 | primes | 42.7 % |
| A140506 | Primes congruent to 11 or 19 mod 30 | primes | 37.5 % |
| A140533 | Primes congruent to 13 or 17 mod 30 | primes | 37.7 % |
| A140540 | Primes of form 17*n - 3 | primes | 44.3 % |
| A140541 | Primes of the form 17*k - 1 | primes | 44.6 % |
| A140542 | Primes of form 17*n - 6 | primes | 44.5 % |
| A140543 | Primes congruent to 15 mod 17 | primes | 44.5 % |
| A140544 | Primes of form 17*k + 2 | primes | 44.2 % |
| A140545 | Primes of form 17n + 6 | primes | 44.8 % |
| A140672 | a(n) = n*(3*n + 13)/2 | polynomial | 100.0 % |
| A140673 | a(n) = 3*n*(n + 5)/2 | polynomial | 100.0 % |
| A140674 | a(n) = n*(3*n + 17)/2 | polynomial | 100.0 % |
| A140675 | a(n) = n*(3*n + 19)/2 | polynomial | 100.0 % |
| A140676 | a(n) = n*(3*n + 4) | polynomial | 100.0 % |
| A140677 | a(n) = n*(3*n + 8) | polynomial | 100.0 % |
| A140678 | a(n) = n*(3*n + 10) | polynomial | 100.0 % |
| A140679 | a(n) = n*(3*n+14) | polynomial | 100.0 % |
| A140680 | a(n) = n*(3*n+16) | polynomial | 100.0 % |
| A140681 | a(n) = 3*n*(n+6) | polynomial | 100.0 % |
| A140689 | a(n) = n*(3*n + 20) | polynomial | 100.0 % |
| A140840 | Primes of the form 210n+11 | primes | 63.0 % |
| A140841 | Primes of the form 210n + 13 | primes | 62.6 % |
| A140842 | Primes of the form 210k + 17 | primes | 62.8 % |
| A140843 | Primes of the form 210k + 19 | primes | 63.0 % |
| A140844 | Primes of the form 210k + 23 | primes | 63.1 % |
| A140845 | Primes of the form 210k + 29 | primes | 62.7 % |
| A140846 | Primes of the form 210k + 31 | primes | 62.7 % |
| A140847 | Primes of the form 210k + 37 | primes | 62.7 % |
| A140848 | Primes of the form 210k + 41 | primes | 63.0 % |
| A140849 | Primes of the form 210k + 43 | primes | 62.7 % |
| A140850 | Primes of the form 210k + 47 | primes | 62.9 % |
| A140851 | Primes of the form 210k + 53 | primes | 62.7 % |
| A140852 | Primes of the form 210k + 59 | primes | 62.8 % |
| A140854 | Primes of the form 210k + 61 | primes | 62.8 % |
| A140855 | Primes of the form 210k + 67 | primes | 62.8 % |
| A140856 | Primes of the form 210n+71 | primes | 62.8 % |
| A140857 | Primes of the form 210k + 73 | primes | 62.9 % |
| A141194 | Primes of the form 16k+7 | primes | 37.9 % |
| A141195 | Primes of the form 16k+11 | primes | 38.2 % |
| A141196 | Primes of the form 16k+13 | primes | 38.6 % |
| A141489 | Numbers k such that k^2 + k + 257 is prime | prime values | 20.0 % |
| A141563 | Primes of the form 2*3*5*7*n+79 | primes | 62.9 % |
| A141570 | Primes of the form 2*3*5*7*n+83 | primes | 62.9 % |
| A141631 | a(n) = 3*n^2 - 4*n + 3 | polynomial | 100.0 % |
| A141759 | a(n) = 16n^2 + 32n + 15 | polynomial | 100.0 % |
| A141849 | Primes congruent to 1 mod 11 | primes | 41.6 % |
| A141850 | Primes congruent to 3 mod 11 | primes | 41.7 % |
| A141851 | Primes congruent to 4 mod 11 | primes | 41.7 % |
| A141852 | Primes congruent to 5 mod 11 | primes | 42.0 % |
| A141853 | Primes congruent to 6 mod 11 | primes | 41.5 % |
| A141854 | Primes congruent to 7 mod 11 | primes | 41.9 % |
| A141855 | Primes congruent to 8 mod 11 | primes | 41.7 % |
| A141856 | Primes congruent to 9 mod 11 | primes | 41.8 % |
| A141857 | Primes congruent to 10 mod 11 | primes | 41.8 % |
| A141859 | Primes congruent to 12 mod 13 | primes | 42.6 % |
| A141865 | Primes congruent to 13 mod 17 | primes | 44.2 % |
| A141868 | Primes congruent to 1 mod 19 | primes | 45.0 % |
| A141869 | Primes congruent to 2 mod 19 | primes | 44.9 % |
| A141870 | Primes congruent to 4 mod 19 | primes | 45.1 % |
| A141871 | Primes congruent to 6 mod 19 | primes | 45.2 % |
| A141872 | Primes congruent to 7 mod 19 | primes | 45.2 % |
| A141873 | Primes congruent to 8 mod 19 | primes | 44.9 % |
| A141874 | Primes congruent to 9 mod 19 | primes | 45.2 % |
| A141875 | Primes congruent to 10 mod 19 | primes | 45.1 % |
| A141876 | Primes congruent to 11 mod 19 | primes | 45.1 % |
| A141877 | Primes congruent to 12 mod 19 | primes | 45.2 % |
| A141878 | Primes congruent to 13 mod 19 | primes | 45.2 % |
| A141879 | Primes congruent to 14 mod 19 | primes | 45.2 % |
| A141880 | Primes congruent to 15 mod 19 | primes | 44.9 % |
| A141881 | Primes congruent to 1 mod 20 | primes | 41.9 % |
| A141882 | Primes congruent to 7 mod 20 | primes | 42.0 % |
| A141883 | Primes congruent to 9 mod 20 | primes | 42.0 % |
| A141884 | Primes congruent to 11 mod 20 | primes | 41.9 % |
| A141885 | Primes congruent to 13 mod 20 | primes | 41.7 % |
| A141886 | Primes congruent to 17 mod 20 | primes | 41.9 % |
| A141887 | Primes congruent to 19 mod 20 | primes | 41.8 % |
| A141888 | Primes congruent to 2 mod 21 | primes | 50.2 % |
| A141889 | Primes congruent to 4 mod 21 | primes | 50.0 % |
| A141890 | Primes congruent to 5 mod 21 | primes | 50.2 % |
| A141891 | Primes congruent to 8 mod 21 | primes | 50.1 % |
| A141892 | Primes congruent to 10 mod 21 | primes | 50.0 % |
| A141893 | Primes congruent to 11 mod 21 | primes | 49.8 % |
| A141894 | Primes congruent to 13 mod 21 | primes | 50.0 % |
| A141895 | Primes congruent to 16 mod 21 | primes | 50.1 % |
| A141896 | Primes congruent to 17 mod 21 | primes | 50.0 % |
| A141897 | Primes congruent to 19 mod 21 | primes | 50.0 % |
| A141898 | Primes congruent to 20 mod 21 | primes | 50.0 % |
| A141899 | Primes of the form 2*3*5*7*k + 97 | primes | 63.1 % |
| A141908 | Primes congruent to 2 mod 23 | primes | 46.5 % |
| A141909 | Primes congruent to 4 mod 23 | primes | 46.4 % |
| A141910 | Primes congruent to 6 mod 23 | primes | 46.1 % |
| A141911 | Primes congruent to 7 mod 23 | primes | 46.3 % |
| A141912 | Primes congruent to 8 mod 23 | primes | 46.5 % |
| A141913 | Primes congruent to 9 mod 23 | primes | 46.2 % |
| A141914 | Primes congruent to 10 mod 23 | primes | 46.3 % |
| A141915 | Primes congruent to 11 mod 23 | primes | 46.4 % |
| A141916 | Primes congruent to 12 mod 23 | primes | 46.2 % |
| A141917 | Primes congruent to 13 mod 23 | primes | 46.3 % |
| A141918 | Primes congruent to 14 mod 23 | primes | 46.8 % |
| A141919 | Primes congruent to 15 mod 23 | primes | 46.3 % |
| A141920 | Primes congruent to 16 mod 23 | primes | 46.1 % |
| A141921 | Primes congruent to 17 mod 23 | primes | 46.2 % |
| A141922 | Primes congruent to 18 mod 23 | primes | 46.5 % |
| A141923 | Primes congruent to 19 mod 23 | primes | 46.2 % |
| A141924 | Primes congruent to 20 mod 23 | primes | 46.2 % |
| A141925 | Primes congruent to 21 mod 23 | primes | 46.2 % |
| A141926 | Primes congruent to 22 mod 23 | primes | 46.3 % |
| A141927 | Primes congruent to 1 mod 25 | primes | 48.2 % |
| A141928 | Primes congruent to 2 mod 25 | primes | 48.5 % |
| A141929 | Primes congruent to 3 mod 25 | primes | 48.1 % |
| A141930 | Primes congruent to 4 mod 25 | primes | 48.5 % |
| A141931 | Primes congruent to 6 mod 25 | primes | 48.1 % |
| A141932 | Primes congruent to 7 mod 25 | primes | 48.3 % |
| A141933 | Primes congruent to 8 mod 25 | primes | 48.1 % |
| A141934 | Primes congruent to 9 mod 25 | primes | 48.4 % |
| A141935 | Primes congruent to 11 mod 25 | primes | 48.6 % |
| A141936 | Primes congruent to 12 mod 25 | primes | 48.0 % |
| A141937 | Primes congruent to 13 mod 25 | primes | 48.1 % |
| A141938 | Primes congruent to 14 mod 25 | primes | 48.3 % |
| A141939 | Primes congruent to 16 mod 25 | primes | 48.1 % |
| A141940 | Primes congruent to 17 mod 25 | primes | 48.4 % |
| A141941 | Primes congruent to 18 mod 25 | primes | 48.2 % |
| A141942 | Primes congruent to 19 mod 25 | primes | 48.0 % |
| A141943 | Primes congruent to 21 mod 25 | primes | 48.4 % |
| A141944 | Primes congruent to 22 mod 25 | primes | 48.3 % |
| A141945 | Primes congruent to 23 mod 25 | primes | 48.3 % |
| A141946 | Primes congruent to 24 mod 25 | primes | 48.4 % |
| A141948 | Primes congruent to 1 mod 27 | primes | 49.9 % |
| A141949 | Primes congruent to 2 mod 27 | primes | 50.0 % |
| A141950 | Primes congruent to 4 mod 27 | primes | 50.0 % |
| A141951 | Primes congruent to 5 mod 27 | primes | 50.0 % |
| A141952 | Primes congruent to 7 mod 27 | primes | 50.0 % |
| A141953 | Primes congruent to 8 mod 27 | primes | 50.0 % |
| A141954 | Primes congruent to 10 mod 27 | primes | 49.7 % |
| A141955 | Primes congruent to 11 mod 27 | primes | 50.0 % |
| A141956 | Primes congruent to 13 mod 27 | primes | 50.1 % |
| A141957 | Primes congruent to 14 mod 27 | primes | 49.8 % |
| A141958 | Primes congruent to 16 mod 27 | primes | 50.0 % |
| A141959 | Primes congruent to 17 mod 27 | primes | 49.9 % |
| A141960 | Primes congruent to 19 mod 27 | primes | 50.0 % |
| A141961 | Primes congruent to 20 mod 27 | primes | 49.8 % |
| A141962 | Primes congruent to 22 mod 27 | primes | 50.1 % |
| A141963 | Primes congruent to 23 mod 27 | primes | 49.9 % |
| A141964 | Primes congruent to 25 mod 27 | primes | 49.5 % |
| A141965 | Primes congruent to 26 mod 27 | primes | 50.1 % |
| A141966 | Primes congruent to 3 mod 28 | primes | 44.1 % |
| A141967 | Primes congruent to 5 mod 28 | primes | 43.7 % |
| A141968 | Primes congruent to 9 mod 28 | primes | 43.7 % |
| A141969 | Primes congruent to 11 mod 28 | primes | 43.9 % |
| A141970 | Primes congruent to 13 mod 28 | primes | 43.8 % |
| A141971 | Primes congruent to 15 mod 28 | primes | 44.0 % |
| A141972 | Primes congruent to 17 mod 28 | primes | 43.7 % |
| A141973 | Primes congruent to 19 mod 28 | primes | 44.1 % |
| A141974 | Primes congruent to 23 mod 28 | primes | 43.9 % |
| A141975 | Primes congruent to 25 mod 28 | primes | 43.9 % |
| A141976 | Primes congruent to 27 mod 28 | primes | 43.6 % |
| A141977 | Primes congruent to 1 mod 29 | primes | 47.7 % |
| A141978 | Primes congruent to 2 mod 29 | primes | 47.6 % |
| A141979 | Primes congruent to 3 mod 29 | primes | 47.5 % |
| A141980 | Primes congruent to 4 mod 29 | primes | 47.9 % |
| A141981 | Primes congruent to 5 mod 29 | primes | 47.8 % |
| A141982 | Primes congruent to 6 mod 29 | primes | 47.8 % |
| A141983 | Primes congruent to 7 mod 29 | primes | 47.8 % |
| A141984 | Primes congruent to 8 mod 29 | primes | 47.6 % |
| A141985 | Primes congruent to 9 mod 29 | primes | 47.7 % |
| A141986 | Primes congruent to 10 mod 29 | primes | 48.0 % |
| A141987 | Primes congruent to 11 mod 29 | primes | 47.9 % |
| A141988 | Primes congruent to 12 mod 29 | primes | 47.7 % |
| A141989 | Primes congruent to 13 mod 29 | primes | 47.9 % |
| A141990 | Primes congruent to 14 mod 29 | primes | 47.7 % |
| A141991 | Primes congruent to 15 mod 29 | primes | 47.6 % |
| A141992 | Primes congruent to 16 mod 29 | primes | 47.9 % |
| A141993 | Primes congruent to 17 mod 29 | primes | 48.2 % |
| A141994 | Primes congruent to 18 mod 29 | primes | 47.9 % |
| A141995 | Primes congruent to 19 mod 29 | primes | 47.7 % |
| A141996 | Primes congruent to 20 mod 29 | primes | 47.7 % |
| A141997 | Primes congruent to 21 mod 29 | primes | 47.9 % |
| A141998 | Primes congruent to 22 mod 29 | primes | 48.0 % |
| A141999 | Primes congruent to 23 mod 29 | primes | 47.9 % |
| A142000 | Primes congruent to 24 mod 29 | primes | 47.8 % |
| A142001 | Primes congruent to 25 mod 29 | primes | 47.9 % |
| A142002 | Primes congruent to 26 mod 29 | primes | 47.9 % |
| A142003 | Primes congruent to 27 mod 29 | primes | 47.8 % |
| A142004 | Primes congruent to 28 mod 29 | primes | 47.6 % |
| A142005 | Primes congruent to 1 mod 31 | primes | 48.2 % |
| A142006 | Primes congruent to 2 mod 31 | primes | 47.9 % |
| A142007 | Primes congruent to 3 mod 31 | primes | 47.7 % |
| A142008 | Primes congruent to 4 mod 31 | primes | 48.5 % |
| A142009 | Primes congruent to 5 mod 31 | primes | 48.2 % |
| A142010 | Primes congruent to 6 mod 31 | primes | 48.1 % |
| A142011 | Primes congruent to 7 mod 31 | primes | 48.2 % |
| A142012 | Primes congruent to 8 mod 31 | primes | 48.1 % |
| A142013 | Primes congruent to 9 mod 31 | primes | 48.1 % |
| A142014 | Primes congruent to 10 mod 31 | primes | 48.2 % |
| A142015 | Primes congruent to 11 mod 31 | primes | 48.1 % |
| A142016 | Primes congruent to 12 mod 31 | primes | 48.4 % |
| A142017 | Primes congruent to 13 mod 31 | primes | 48.2 % |
| A142018 | Primes congruent to 14 mod 31 | primes | 48.4 % |
| A142019 | Primes congruent to 15 mod 31 | primes | 48.2 % |
| A142020 | Primes congruent to 16 mod 31 | primes | 48.0 % |
| A142021 | Primes congruent to 17 mod 31 | primes | 48.3 % |
| A142022 | Primes congruent to 18 mod 31 | primes | 48.2 % |
| A142023 | Primes congruent to 19 mod 31 | primes | 47.9 % |
| A142024 | Primes congruent to 20 mod 31 | primes | 48.2 % |
| A142025 | Primes congruent to 21 mod 31 | primes | 48.1 % |
| A142026 | Primes congruent to 22 mod 31 | primes | 48.3 % |
| A142027 | Primes congruent to 23 mod 31 | primes | 48.3 % |
| A142028 | Primes congruent to 24 mod 31 | primes | 48.2 % |
| A142029 | Primes congruent to 25 mod 31 | primes | 48.0 % |
| A142030 | Primes congruent to 26 mod 31 | primes | 48.5 % |
| A142031 | Primes congruent to 27 mod 31 | primes | 48.0 % |
| A142032 | Primes congruent to 28 mod 31 | primes | 48.5 % |
| A142033 | Primes congruent to 29 mod 31 | primes | 48.2 % |
| A142034 | Primes congruent to 30 mod 31 | primes | 48.3 % |
| A142035 | Primes congruent to 3 mod 32 | primes | 43.3 % |
| A142036 | Primes congruent to 5 mod 32 | primes | 43.3 % |
| A142037 | Primes congruent to 7 mod 32 | primes | 43.1 % |
| A142038 | Primes congruent to 9 mod 32 | primes | 43.2 % |
| A142039 | Primes congruent to 11 mod 32 | primes | 43.0 % |
| A142040 | Primes congruent to 13 mod 32 | primes | 43.3 % |
| A142041 | Primes congruent to 15 mod 32 | primes | 43.2 % |
| A142042 | Primes congruent to 19 mod 32 | primes | 43.2 % |
| A142043 | Primes congruent to 21 mod 32 | primes | 43.2 % |
| A142044 | Primes congruent to 23 mod 32 | primes | 43.2 % |
| A142045 | Primes congruent to 25 mod 32 | primes | 43.1 % |
| A142046 | Primes congruent to 27 mod 32 | primes | 43.1 % |
| A142047 | Primes congruent to 29 mod 32 | primes | 42.8 % |
| A142049 | Primes congruent to 1 mod 33 | primes | 52.5 % |
| A142050 | Primes congruent to 2 mod 33 | primes | 52.5 % |
| A142051 | Primes congruent to 4 mod 33 | primes | 52.5 % |
| A142052 | Primes congruent to 5 mod 33 | primes | 52.7 % |
| A142053 | Primes congruent to 7 mod 33 | primes | 52.5 % |
| A142054 | Primes congruent to 8 mod 33 | primes | 52.6 % |
| A142055 | Primes congruent to 10 mod 33 | primes | 52.8 % |
| A142056 | Primes congruent to 13 mod 33 | primes | 52.5 % |
| A142057 | Primes congruent to 14 mod 33 | primes | 52.5 % |
| A142058 | Primes congruent to 16 mod 33 | primes | 52.7 % |
| A142059 | Primes congruent to 17 mod 33 | primes | 52.6 % |
| A142060 | Primes congruent to 19 mod 33 | primes | 52.5 % |
| A142061 | Primes congruent to 20 mod 33 | primes | 52.5 % |
| A142062 | Primes congruent to 23 mod 33 | primes | 52.6 % |
| A142063 | Primes congruent to 25 mod 33 | primes | 52.5 % |
| A142064 | Primes congruent to 26 mod 33 | primes | 52.6 % |
| A142065 | Primes congruent to 28 mod 33 | primes | 52.4 % |
| A142066 | Primes congruent to 29 mod 33 | primes | 52.9 % |
| A142067 | Primes congruent to 31 mod 33 | primes | 52.6 % |
| A142068 | Primes congruent to 32 mod 33 | primes | 52.6 % |
| A142076 | Primes congruent to 1 mod 35 | primes | 52.2 % |
| A142077 | Primes congruent to 2 mod 35 | primes | 52.0 % |
| A142078 | Primes congruent to 3 mod 35 | primes | 52.0 % |
| A142079 | Primes congruent to 4 mod 35 | primes | 52.4 % |
| A142080 | Primes congruent to 6 mod 35 | primes | 52.3 % |
| A142081 | Primes congruent to 8 mod 35 | primes | 52.3 % |
| A142082 | Primes congruent to 9 mod 35 | primes | 52.1 % |
| A142083 | Primes congruent to 11 mod 35 | primes | 52.3 % |
| A142084 | Primes congruent to 12 mod 35 | primes | 52.2 % |
| A142085 | Primes congruent to 13 mod 35 | primes | 52.3 % |
| A142086 | Primes congruent to 16 mod 35 | primes | 52.1 % |
| A142087 | Primes congruent to 17 mod 35 | primes | 51.9 % |
| A142088 | Primes congruent to 18 mod 35 | primes | 52.4 % |
| A142089 | Primes congruent to 19 mod 35 | primes | 52.3 % |
| A142090 | Primes congruent to 22 mod 35 | primes | 52.4 % |
| A142091 | Primes congruent to 23 mod 35 | primes | 52.1 % |
| A142092 | Primes congruent to 24 mod 35 | primes | 52.2 % |
| A142093 | Primes congruent to 26 mod 35 | primes | 52.3 % |
| A142094 | Primes congruent to 27 mod 35 | primes | 52.3 % |
| A142095 | Primes congruent to 29 mod 35 | primes | 52.4 % |
| A142096 | Primes congruent to 31 mod 35 | primes | 52.0 % |
| A142097 | Primes congruent to 32 mod 35 | primes | 51.9 % |
| A142098 | Primes congruent to 33 mod 35 | primes | 52.2 % |
| A142099 | Primes congruent to 34 mod 35 | primes | 52.2 % |
| A142101 | Primes congruent to 5 mod 36 | primes | 47.6 % |
| A142102 | Primes congruent to 7 mod 36 | primes | 47.5 % |
| A142103 | Primes congruent to 11 mod 36 | primes | 47.5 % |
| A142104 | Primes congruent to 13 mod 36 | primes | 47.4 % |
| A142105 | Primes congruent to 17 mod 36 | primes | 47.3 % |
| A142106 | Primes congruent to 19 mod 36 | primes | 47.3 % |
| A142107 | Primes congruent to 23 mod 36 | primes | 47.4 % |
| A142108 | Primes congruent to 25 mod 36 | primes | 47.1 % |
| A142109 | Primes congruent to 29 mod 36 | primes | 47.3 % |
| A142110 | Primes congruent to 31 mod 36 | primes | 47.4 % |
| A142111 | Primes congruent to 35 mod 36 | primes | 47.5 % |
| A142112 | Primes congruent to 2 mod 37 | primes | 49.3 % |
| A142113 | Primes congruent to 4 mod 37 | primes | 49.6 % |
| A142114 | Primes congruent to 5 mod 37 | primes | 49.5 % |
| A142115 | Primes congruent to 6 mod 37 | primes | 49.4 % |
| A142116 | Primes congruent to 7 mod 37 | primes | 49.4 % |
| A142117 | Primes congruent to 8 mod 37 | primes | 49.2 % |
| A142118 | Primes congruent to 9 mod 37 | primes | 49.2 % |
| A142119 | Primes congruent to 10 mod 37 | primes | 49.8 % |
| A142120 | Primes congruent to 11 mod 37 | primes | 49.6 % |
| A142121 | Primes congruent to 12 mod 37 | primes | 49.3 % |
| A142122 | Primes congruent to 13 mod 37 | primes | 49.2 % |
| A142123 | Primes congruent to 14 mod 37 | primes | 49.6 % |
| A142124 | Primes congruent to 15 mod 37 | primes | 49.4 % |
| A142125 | Primes congruent to 16 mod 37 | primes | 49.3 % |
| A142126 | Primes congruent to 17 mod 37 | primes | 49.3 % |
| A142127 | Primes congruent to 18 mod 37 | primes | 49.6 % |
| A142128 | Primes congruent to 19 mod 37 | primes | 49.4 % |
| A142129 | Primes congruent to 20 mod 37 | primes | 49.6 % |
| A142130 | Primes congruent to 21 mod 37 | primes | 49.3 % |
| A142131 | Primes congruent to 22 mod 37 | primes | 49.6 % |
| A142132 | Primes congruent to 23 mod 37 | primes | 49.3 % |
| A142133 | Primes congruent to 24 mod 37 | primes | 49.6 % |
| A142134 | Primes congruent to 25 mod 37 | primes | 49.5 % |
| A142135 | Primes congruent to 26 mod 37 | primes | 49.6 % |
| A142136 | Primes congruent to 27 mod 37 | primes | 49.5 % |
| A142137 | Primes congruent to 28 mod 37 | primes | 49.5 % |
| A142138 | Primes congruent to 29 mod 37 | primes | 49.2 % |
| A142139 | Primes congruent to 30 mod 37 | primes | 49.4 % |
| A142140 | Primes congruent to 31 mod 37 | primes | 49.4 % |
| A142141 | Primes congruent to 32 mod 37 | primes | 49.5 % |
| A142142 | Primes congruent to 33 mod 37 | primes | 49.7 % |
| A142143 | Primes congruent to 34 mod 37 | primes | 49.6 % |
| A142144 | Primes congruent to 35 mod 37 | primes | 49.2 % |
| A142145 | Primes congruent to 36 mod 37 | primes | 49.2 % |
| A142159 | Primes congruent to 1 mod 39 | primes | 53.5 % |
| A142160 | Primes congruent to 2 mod 39 | primes | 53.5 % |
| A142161 | Primes congruent to 4 mod 39 | primes | 53.4 % |
| A142162 | Primes congruent to 5 mod 39 | primes | 53.6 % |
| A142163 | Primes congruent to 7 mod 39 | primes | 53.6 % |
| A142164 | Primes congruent to 8 mod 39 | primes | 53.7 % |
| A142165 | Primes congruent to 10 mod 39 | primes | 53.4 % |
| A142166 | Primes congruent to 11 mod 39 | primes | 53.5 % |
| A142167 | Primes congruent to 14 mod 39 | primes | 53.6 % |
| A142168 | Primes congruent to 16 mod 39 | primes | 53.4 % |
| A142169 | Primes congruent to 17 mod 39 | primes | 53.7 % |
| A142170 | Primes congruent to 19 mod 39 | primes | 53.8 % |
| A142171 | Primes congruent to 20 mod 39 | primes | 53.6 % |
| A142172 | Primes congruent to 22 mod 39 | primes | 53.4 % |
| A142173 | Primes congruent to 23 mod 39 | primes | 53.5 % |
| A142174 | Primes congruent to 25 mod 39 | primes | 53.3 % |
| A142176 | Primes congruent to 29 mod 39 | primes | 53.3 % |
| A142177 | Primes congruent to 31 mod 39 | primes | 53.6 % |
| A142178 | Primes congruent to 32 mod 39 | primes | 53.3 % |
| A142179 | Primes congruent to 34 mod 39 | primes | 53.4 % |
| A142180 | Primes congruent to 35 mod 39 | primes | 53.5 % |
| A142181 | Primes congruent to 37 mod 39 | primes | 53.7 % |
| A142182 | Primes congruent to 38 mod 39 | primes | 53.3 % |
| A142183 | Primes congruent to 1 mod 40 | primes | 46.5 % |
| A142184 | Primes congruent to 3 mod 40 | primes | 47.1 % |
| A142185 | Primes congruent to 7 mod 40 | primes | 46.6 % |
| A142186 | Primes congruent to 9 mod 40 | primes | 47.0 % |
| A142187 | Primes congruent to 11 mod 40 | primes | 46.9 % |
| A142188 | Primes congruent to 13 mod 40 | primes | 46.6 % |
| A142189 | Primes congruent to 17 mod 40 | primes | 47.1 % |
| A142190 | Primes congruent to 19 mod 40 | primes | 46.7 % |
| A142191 | Primes congruent to 21 mod 40 | primes | 46.8 % |
| A142192 | Primes congruent to 23 mod 40 | primes | 46.7 % |
| A142193 | Primes congruent to 27 mod 40 | primes | 46.7 % |
| A142194 | Primes congruent to 29 mod 40 | primes | 47.1 % |
| A142195 | Primes congruent to 31 mod 40 | primes | 46.9 % |
| A142196 | Primes congruent to 33 mod 40 | primes | 46.8 % |
| A142197 | Primes congruent to 37 mod 40 | primes | 46.8 % |
| A142198 | Primes congruent to 39 mod 40 | primes | 47.0 % |
| A142199 | Primes congruent to 2 mod 41 | primes | 50.0 % |
| A142200 | Primes congruent to 3 mod 41 | primes | 50.0 % |
| A142201 | Primes congruent to 4 mod 41 | primes | 50.1 % |
| A142202 | Primes congruent to 5 mod 41 | primes | 50.2 % |
| A142203 | Primes congruent to 6 mod 41 | primes | 50.3 % |
| A142204 | Primes congruent to 7 mod 41 | primes | 49.8 % |
| A142205 | Primes congruent to 8 mod 41 | primes | 50.1 % |
| A142206 | Primes congruent to 9 mod 41 | primes | 50.2 % |
| A142207 | Primes congruent to 10 mod 41 | primes | 50.1 % |
| A142208 | Primes congruent to 11 mod 41 | primes | 50.0 % |
| A142209 | Primes congruent to 12 mod 41 | primes | 50.3 % |
| A142210 | Primes congruent to 13 mod 41 | primes | 50.0 % |
| A142211 | Primes congruent to 14 mod 41 | primes | 50.2 % |
| A142212 | Primes congruent to 15 mod 41 | primes | 50.2 % |
| A142213 | Primes congruent to 16 mod 41 | primes | 50.1 % |
| A142214 | Primes congruent to 17 mod 41 | primes | 50.1 % |
| A142215 | Primes congruent to 18 mod 41 | primes | 50.1 % |
| A142216 | Primes congruent to 19 mod 41 | primes | 50.1 % |
| A142217 | Primes congruent to 20 mod 41 | primes | 50.2 % |
| A142218 | Primes congruent to 21 mod 41 | primes | 50.0 % |
| A142219 | Primes congruent to 22 mod 41 | primes | 50.2 % |
| A142220 | Primes congruent to 23 mod 41 | primes | 50.1 % |
| A142221 | Primes congruent to 24 mod 41 | primes | 50.1 % |
| A142222 | Primes congruent to 25 mod 41 | primes | 49.7 % |
| A142223 | Primes congruent to 26 mod 41 | primes | 49.8 % |
| A142224 | Primes congruent to 27 mod 41 | primes | 50.3 % |
| A142225 | Primes congruent to 28 mod 41 | primes | 49.8 % |
| A142226 | Primes congruent to 29 mod 41 | primes | 50.1 % |
| A142227 | Primes congruent to 30 mod 41 | primes | 50.1 % |
| A142228 | Primes congruent to 31 mod 41 | primes | 50.0 % |
| A142229 | Primes congruent to 32 mod 41 | primes | 50.3 % |
| A142230 | Primes congruent to 33 mod 41 | primes | 50.1 % |
| A142250 | Primes congruent to 1 mod 43 | primes | 50.5 % |
| A142251 | Primes congruent to 2 mod 43 | primes | 50.7 % |
| A142252 | Primes congruent to 3 mod 43 | primes | 50.5 % |
| A142253 | Primes congruent to 4 mod 43 | primes | 50.2 % |
| A142254 | Primes congruent to 5 mod 43 | primes | 50.3 % |
| A142255 | Primes congruent to 6 mod 43 | primes | 50.1 % |
| A142256 | Primes congruent to 7 mod 43 | primes | 50.6 % |
| A142257 | Primes congruent to 8 mod 43 | primes | 50.1 % |
| A142258 | Primes congruent to 9 mod 43 | primes | 50.4 % |
| A142259 | Primes congruent to 10 mod 43 | primes | 50.3 % |
| A142260 | Primes congruent to 11 mod 43 | primes | 50.2 % |
| A142261 | Primes congruent to 12 mod 43 | primes | 50.3 % |
| A142262 | Primes congruent to 13 mod 43 | primes | 50.4 % |
| A142263 | Primes congruent to 14 mod 43 | primes | 50.5 % |
| A142264 | Primes congruent to 15 mod 43 | primes | 50.7 % |
| A142265 | Primes congruent to 16 mod 43 | primes | 50.3 % |
| A142266 | Primes congruent to 17 mod 43 | primes | 50.4 % |
| A142267 | Primes congruent to 18 mod 43 | primes | 50.2 % |
| A142268 | Primes congruent to 19 mod 43 | primes | 50.3 % |
| A142269 | Primes congruent to 20 mod 43 | primes | 50.6 % |
| A142270 | Primes congruent to 21 mod 43 | primes | 50.6 % |
| A142271 | Primes congruent to 22 mod 43 | primes | 50.3 % |
| A142272 | Primes congruent to 23 mod 43 | primes | 50.5 % |
| A142273 | Primes congruent to 24 mod 43 | primes | 50.2 % |
| A142274 | Primes congruent to 25 mod 43 | primes | 50.7 % |
| A142275 | Primes congruent to 26 mod 43 | primes | 50.4 % |
| A142276 | Primes congruent to 27 mod 43 | primes | 50.8 % |
| A142277 | Primes congruent to 28 mod 43 | primes | 50.3 % |
| A142278 | Primes congruent to 29 mod 43 | primes | 50.3 % |
| A142279 | Primes congruent to 30 mod 43 | primes | 50.4 % |
| A142280 | Primes congruent to 31 mod 43 | primes | 50.3 % |
| A142281 | Primes congruent to 32 mod 43 | primes | 50.5 % |
| A142292 | Primes congruent to 1 mod 44 | primes | 46.4 % |
| A142293 | Primes congruent to 3 mod 44 | primes | 46.4 % |
| A142294 | Primes congruent to 5 mod 44 | primes | 46.6 % |
| A142295 | Primes congruent to 7 mod 44 | primes | 46.6 % |
| A142296 | Primes congruent to 9 mod 44 | primes | 46.0 % |
| A142297 | Primes congruent to 13 mod 44 | primes | 46.5 % |
| A142298 | Primes congruent to 15 mod 44 | primes | 46.4 % |
| A142299 | Primes congruent to 17 mod 44 | primes | 46.2 % |
| A142300 | Primes congruent to 19 mod 44 | primes | 46.3 % |
| A142301 | Primes congruent to 21 mod 44 | primes | 46.6 % |
| A142302 | Primes congruent to 23 mod 44 | primes | 46.5 % |
| A142303 | Primes congruent to 25 mod 44 | primes | 46.3 % |
| A142304 | Primes congruent to 27 mod 44 | primes | 46.4 % |
| A142305 | Primes congruent to 29 mod 44 | primes | 46.6 % |
| A142306 | Primes congruent to 31 mod 44 | primes | 46.5 % |
| A142307 | Primes congruent to 35 mod 44 | primes | 46.5 % |
| A142308 | Primes congruent to 37 mod 44 | primes | 46.6 % |
| A142309 | Primes congruent to 39 mod 44 | primes | 46.5 % |
| A142310 | Primes congruent to 41 mod 44 | primes | 46.4 % |
| A142311 | Primes congruent to 43 mod 44 | primes | 46.6 % |
| A142312 | Primes congruent to 1 mod 45 | primes | 55.4 % |
| A142313 | Primes congruent to 2 mod 45 | primes | 55.8 % |
| A142314 | Primes congruent to 4 mod 45 | primes | 55.6 % |
| A142315 | Primes congruent to 7 mod 45 | primes | 55.4 % |
| A142316 | Primes congruent to 8 mod 45 | primes | 55.2 % |
| A142317 | Primes congruent to 11 mod 45 | primes | 55.7 % |
| A142318 | Primes congruent to 13 mod 45 | primes | 55.5 % |
| A142319 | Primes congruent to 14 mod 45 | primes | 55.5 % |
| A142320 | Primes congruent to 16 mod 45 | primes | 55.3 % |
| A142321 | Primes congruent to 17 mod 45 | primes | 55.5 % |
| A142322 | Primes congruent to 19 mod 45 | primes | 55.7 % |
| A142323 | Primes congruent to 22 mod 45 | primes | 55.4 % |
| A142324 | Primes congruent to 23 mod 45 | primes | 55.4 % |
| A142325 | Primes congruent to 26 mod 45 | primes | 55.6 % |
| A142326 | Primes congruent to 28 mod 45 | primes | 55.3 % |
| A142327 | Primes congruent to 29 mod 45 | primes | 55.5 % |
| A142328 | Primes congruent to 31 mod 45 | primes | 55.2 % |
| A142329 | Primes congruent to 32 mod 45 | primes | 55.7 % |
| A142330 | Primes congruent to 34 mod 45 | primes | 55.4 % |
| A142331 | Primes congruent to 37 mod 45 | primes | 55.2 % |
| A142332 | Primes congruent to 38 mod 45 | primes | 55.5 % |
| A142333 | Primes congruent to 41 mod 45 | primes | 55.6 % |
| A142334 | Primes congruent to 43 mod 45 | primes | 55.3 % |
| A142335 | Primes congruent to 44 mod 45 | primes | 55.5 % |
| A142357 | Primes congruent to 6 mod 47 | primes | 51.1 % |
| A142358 | Primes congruent to 7 mod 47 | primes | 51.1 % |
| A142359 | Primes congruent to 8 mod 47 | primes | 50.8 % |
| A142360 | Primes congruent to 9 mod 47 | primes | 51.2 % |
| A142362 | Primes congruent to 11 mod 47 | primes | 51.3 % |
| A142363 | Primes congruent to 12 mod 47 | primes | 50.8 % |
| A142366 | Primes congruent to 15 mod 47 | primes | 50.9 % |
| A142367 | Primes congruent to 16 mod 47 | primes | 51.1 % |
| A142368 | Primes congruent to 17 mod 47 | primes | 51.1 % |
| A142369 | Primes congruent to 18 mod 47 | primes | 51.3 % |
| A142370 | Primes congruent to 19 mod 47 | primes | 51.1 % |
| A142371 | Primes congruent to 20 mod 47 | primes | 50.9 % |
| A142372 | Primes congruent to 21 mod 47 | primes | 51.1 % |
| A142374 | Primes congruent to 23 mod 47 | primes | 50.8 % |
| A142398 | Primes congruent to 1 mod 48 | primes | 49.4 % |
| A142399 | Primes congruent to 5 mod 48 | primes | 49.5 % |
| A142400 | Primes congruent to 7 mod 48 | primes | 49.0 % |
| A142401 | Primes congruent to 11 mod 48 | primes | 49.0 % |
| A142402 | Primes congruent to 13 mod 48 | primes | 49.4 % |
| A142403 | Primes congruent to 17 mod 48 | primes | 49.4 % |
| A142404 | Primes congruent to 19 mod 48 | primes | 49.3 % |
| A142405 | Primes congruent to 23 mod 48 | primes | 49.3 % |
| A142406 | Primes congruent to 25 mod 48 | primes | 48.9 % |
| A142407 | Primes congruent to 29 mod 48 | primes | 49.4 % |
| A142408 | Primes congruent to 31 mod 48 | primes | 49.3 % |
| A142409 | Primes congruent to 35 mod 48 | primes | 48.9 % |
| A142410 | Primes congruent to 37 mod 48 | primes | 49.3 % |
| A142411 | Primes congruent to 41 mod 48 | primes | 49.0 % |
| A142412 | Primes congruent to 43 mod 48 | primes | 49.2 % |
| A142413 | Primes congruent to 47 mod 48 | primes | 49.3 % |
| A142414 | Primes congruent to 1 mod 49 | primes | 52.5 % |
| A142415 | Primes congruent to 2 mod 49 | primes | 52.4 % |
| A142416 | Primes congruent to 3 mod 49 | primes | 52.5 % |
| A142417 | Primes congruent to 4 mod 49 | primes | 52.2 % |
| A142418 | Primes congruent to 5 mod 49 | primes | 52.5 % |
| A142419 | Primes congruent to 6 mod 49 | primes | 52.3 % |
| A142420 | Primes congruent to 8 mod 49 | primes | 52.5 % |
| A142421 | Primes congruent to 9 mod 49 | primes | 52.5 % |
| A142422 | Primes congruent to 10 mod 49 | primes | 52.4 % |
| A142423 | Primes congruent to 11 mod 49 | primes | 52.4 % |
| A142424 | Primes congruent to 12 mod 49 | primes | 52.4 % |
| A142425 | Primes congruent to 13 mod 49 | primes | 52.4 % |
| A142426 | Primes congruent to 15 mod 49 | primes | 52.4 % |
| A142427 | Primes congruent to 16 mod 49 | primes | 52.5 % |
| A142428 | Primes congruent to 17 mod 49 | primes | 52.4 % |
| A142429 | Primes congruent to 18 mod 49 | primes | 52.5 % |
| A142430 | Primes congruent to 19 mod 49 | primes | 52.5 % |
| A142431 | Primes congruent to 20 mod 49 | primes | 52.6 % |
| A142432 | Primes congruent to 22 mod 49 | primes | 52.3 % |
| A142433 | Primes congruent to 23 mod 49 | primes | 52.6 % |
| A142434 | Primes congruent to 24 mod 49 | primes | 52.6 % |
| A142435 | Primes congruent to 25 mod 49 | primes | 52.5 % |
| A142436 | Primes congruent to 26 mod 49 | primes | 52.5 % |
| A142437 | Primes congruent to 27 mod 49 | primes | 52.4 % |
| A142438 | Primes congruent to 29 mod 49 | primes | 52.4 % |
| A142439 | Primes congruent to 30 mod 49 | primes | 52.4 % |
| A142440 | Primes congruent to 31 mod 49 | primes | 52.0 % |
| A142441 | Primes congruent to 32 mod 49 | primes | 52.5 % |
| A142442 | Primes congruent to 33 mod 49 | primes | 52.5 % |
| A142443 | Primes congruent to 34 mod 49 | primes | 52.5 % |
| A142444 | Primes congruent to 36 mod 49 | primes | 52.6 % |
| A142445 | Primes congruent to 37 mod 49 | primes | 52.5 % |
| A142446 | Primes congruent to 38 mod 49 | primes | 52.3 % |
| A142447 | Primes congruent to 39 mod 49 | primes | 52.5 % |
| A142448 | Primes congruent to 40 mod 49 | primes | 52.4 % |
| A142449 | Primes congruent to 41 mod 49 | primes | 52.3 % |
| A142450 | Primes congruent to 43 mod 49 | primes | 52.3 % |
| A142451 | Primes congruent to 44 mod 49 | primes | 52.3 % |
| A142452 | Primes congruent to 45 mod 49 | primes | 52.6 % |
| A142453 | Primes congruent to 46 mod 49 | primes | 52.5 % |
| A142454 | Primes congruent to 47 mod 49 | primes | 52.5 % |
| A142455 | Primes congruent to 48 mod 49 | primes | 52.2 % |
| A142476 | Primes congruent to 1 mod 51 | primes | 55.1 % |
| A142477 | Primes congruent to 2 mod 51 | primes | 54.9 % |
| A142478 | Primes congruent to 4 mod 51 | primes | 55.1 % |
| A142479 | Primes congruent to 5 mod 51 | primes | 55.2 % |
| A142480 | Primes congruent to 7 mod 51 | primes | 55.3 % |
| A142481 | Primes congruent to 8 mod 51 | primes | 55.1 % |
| A142482 | Primes congruent to 10 mod 51 | primes | 55.1 % |
| A142483 | Primes congruent to 11 mod 51 | primes | 55.2 % |
| A142484 | Primes congruent to 13 mod 51 | primes | 55.2 % |
| A142485 | Primes congruent to 14 mod 51 | primes | 55.4 % |
| A142486 | Primes congruent to 16 mod 51 | primes | 55.2 % |
| A142487 | Primes congruent to 19 mod 51 | primes | 55.2 % |
| A142488 | Primes congruent to 20 mod 51 | primes | 55.2 % |
| A142489 | Primes congruent to 22 mod 51 | primes | 55.3 % |
| A142490 | Primes congruent to 23 mod 51 | primes | 55.2 % |
| A142491 | Primes congruent to 25 mod 51 | primes | 55.4 % |
| A142492 | Primes congruent to 26 mod 51 | primes | 55.4 % |
| A142493 | Primes congruent to 28 mod 51 | primes | 55.1 % |
| A142494 | Primes congruent to 29 mod 51 | primes | 55.1 % |
| A142495 | Primes congruent to 31 mod 51 | primes | 55.3 % |
| A142496 | Primes congruent to 32 mod 51 | primes | 55.0 % |
| A142497 | Primes congruent to 35 mod 51 | primes | 55.2 % |
| A142498 | Primes congruent to 37 mod 51 | primes | 55.0 % |
| A142499 | Primes congruent to 38 mod 51 | primes | 55.3 % |
| A142500 | Primes congruent to 40 mod 51 | primes | 55.3 % |
| A142501 | Primes congruent to 41 mod 51 | primes | 55.6 % |
| A142502 | Primes congruent to 43 mod 51 | primes | 55.4 % |
| A142503 | Primes congruent to 44 mod 51 | primes | 55.2 % |
| A142504 | Primes congruent to 46 mod 51 | primes | 55.3 % |
| A142505 | Primes congruent to 47 mod 51 | primes | 55.1 % |
| A142506 | Primes congruent to 49 mod 51 | primes | 55.2 % |
| A142507 | Primes congruent to 50 mod 51 | primes | 55.1 % |
| A142508 | Primes congruent to 1 mod 52 | primes | 47.6 % |
| A142509 | Primes congruent to 3 mod 52 | primes | 47.2 % |
| A142510 | Primes congruent to 5 mod 52 | primes | 47.4 % |
| A142511 | Primes congruent to 7 mod 52 | primes | 47.4 % |
| A142512 | Primes congruent to 9 mod 52 | primes | 47.6 % |
| A142513 | Primes congruent to 11 mod 52 | primes | 47.3 % |
| A142514 | Primes congruent to 15 mod 52 | primes | 47.2 % |
| A142515 | Primes congruent to 17 mod 52 | primes | 47.3 % |
| A142516 | Primes congruent to 19 mod 52 | primes | 47.6 % |
| A142517 | Primes congruent to 21 mod 52 | primes | 47.5 % |
| A142518 | Primes congruent to 23 mod 52 | primes | 47.4 % |
| A142519 | Primes congruent to 25 mod 52 | primes | 47.4 % |
| A142520 | Primes congruent to 27 mod 52 | primes | 47.5 % |
| A142521 | Primes congruent to 29 mod 52 | primes | 47.4 % |
| A142522 | Primes congruent to 31 mod 52 | primes | 47.6 % |
| A142523 | Primes congruent to 33 mod 52 | primes | 47.4 % |
| A142524 | Primes congruent to 35 mod 52 | primes | 47.5 % |
| A142525 | Primes congruent to 37 mod 52 | primes | 47.6 % |
| A142526 | Primes congruent to 41 mod 52 | primes | 47.4 % |
| A142527 | Primes congruent to 43 mod 52 | primes | 47.4 % |
| A142528 | Primes congruent to 45 mod 52 | primes | 47.5 % |
| A142529 | Primes congruent to 47 mod 52 | primes | 47.6 % |
| A142530 | Primes congruent to 49 mod 52 | primes | 47.4 % |
| A142531 | Primes congruent to 51 mod 52 | primes | 47.6 % |
| A142601 | Primes congruent to 1 mod 55 | primes | 55.0 % |
| A142602 | Primes congruent to 2 mod 55 | primes | 55.0 % |
| A142603 | Primes congruent to 3 mod 55 | primes | 54.9 % |
| A142604 | Primes congruent to 4 mod 55 | primes | 54.6 % |
| A142605 | Primes congruent to 6 mod 55 | primes | 54.6 % |
| A142606 | Primes congruent to 7 mod 55 | primes | 54.8 % |
| A142607 | Primes congruent to 8 mod 55 | primes | 54.8 % |
| A142608 | Primes congruent to 9 mod 55 | primes | 54.7 % |
| A142609 | Primes congruent to 12 mod 55 | primes | 55.0 % |
| A142610 | Primes congruent to 13 mod 55 | primes | 54.8 % |
| A142611 | Primes congruent to 14 mod 55 | primes | 54.7 % |
| A142612 | Primes congruent to 16 mod 55 | primes | 54.6 % |
| A142613 | Primes congruent to 17 mod 55 | primes | 54.9 % |
| A142614 | Primes congruent to 18 mod 55 | primes | 54.7 % |
| A142615 | Primes congruent to 19 mod 55 | primes | 54.9 % |
| A142616 | Primes congruent to 21 mod 55 | primes | 55.0 % |
| A142617 | Primes congruent to 23 mod 55 | primes | 54.5 % |
| A142618 | Primes congruent to 24 mod 55 | primes | 54.6 % |
| A142619 | Primes congruent to 26 mod 55 | primes | 54.7 % |
| A142620 | Primes congruent to 27 mod 55 | primes | 55.1 % |
| A142621 | Primes congruent to 28 mod 55 | primes | 54.6 % |
| A142622 | Primes congruent to 29 mod 55 | primes | 54.8 % |
| A142623 | Primes congruent to 31 mod 55 | primes | 54.5 % |
| A142624 | Primes congruent to 32 mod 55 | primes | 54.5 % |
| A142625 | Primes congruent to 34 mod 55 | primes | 54.8 % |
| A142626 | Primes congruent to 36 mod 55 | primes | 54.9 % |
| A142627 | Primes congruent to 37 mod 55 | primes | 54.6 % |
| A142628 | Primes congruent to 38 mod 55 | primes | 54.7 % |
| A142629 | Primes congruent to 39 mod 55 | primes | 54.7 % |
| A142630 | Primes congruent to 41 mod 55 | primes | 54.7 % |
| A142631 | Primes congruent to 42 mod 55 | primes | 54.6 % |
| A142632 | Primes congruent to 43 mod 55 | primes | 54.9 % |
| A142633 | Primes congruent to 46 mod 55 | primes | 54.5 % |
| A142634 | Primes congruent to 47 mod 55 | primes | 54.6 % |
| A142635 | Primes congruent to 48 mod 55 | primes | 54.8 % |
| A142636 | Primes congruent to 49 mod 55 | primes | 54.9 % |
| A142637 | Primes congruent to 51 mod 55 | primes | 54.6 % |
| A142638 | Primes congruent to 52 mod 55 | primes | 54.7 % |
| A142639 | Primes congruent to 53 mod 55 | primes | 54.5 % |
| A142640 | Primes congruent to 54 mod 55 | primes | 54.6 % |
| A142641 | Primes congruent to 1 mod 56 | primes | 48.6 % |
| A142642 | Primes congruent to 3 mod 56 | primes | 48.4 % |
| A142643 | Primes congruent to 5 mod 56 | primes | 48.6 % |
| A142644 | Primes congruent to 9 mod 56 | primes | 48.8 % |
| A142645 | Primes congruent to 11 mod 56 | primes | 48.5 % |
| A142646 | Primes congruent to 13 mod 56 | primes | 49.0 % |
| A142647 | Primes congruent to 15 mod 56 | primes | 48.6 % |
| A142648 | Primes congruent to 17 mod 56 | primes | 48.3 % |
| A142649 | Primes congruent to 19 mod 56 | primes | 48.6 % |
| A142650 | Primes congruent to 23 mod 56 | primes | 48.7 % |
| A142651 | Primes congruent to 25 mod 56 | primes | 48.5 % |
| A142652 | Primes congruent to 27 mod 56 | primes | 48.7 % |
| A142653 | Primes congruent to 29 mod 56 | primes | 48.6 % |
| A142654 | Primes congruent to 31 mod 56 | primes | 48.9 % |
| A142655 | Primes congruent to 33 mod 56 | primes | 48.7 % |
| A142656 | Primes congruent to 37 mod 56 | primes | 48.7 % |
| A142657 | Primes congruent to 39 mod 56 | primes | 48.6 % |
| A142658 | Primes congruent to 41 mod 56 | primes | 48.4 % |
| A142659 | Primes congruent to 43 mod 56 | primes | 48.5 % |
| A142660 | Primes congruent to 45 mod 56 | primes | 48.4 % |
| A142661 | Primes congruent to 47 mod 56 | primes | 48.7 % |
| A142662 | Primes congruent to 51 mod 56 | primes | 48.7 % |
| A142663 | Primes congruent to 53 mod 56 | primes | 48.5 % |
| A142664 | Primes congruent to 55 mod 56 | primes | 48.2 % |
| A142665 | Primes congruent to 1 mod 57 | primes | 55.8 % |
| A142666 | Primes congruent to 2 mod 57 | primes | 55.8 % |
| A142667 | Primes congruent to 4 mod 57 | primes | 55.8 % |
| A142668 | Primes congruent to 5 mod 57 | primes | 55.8 % |
| A142669 | Primes congruent to 7 mod 57 | primes | 55.7 % |
| A142670 | Primes congruent to 8 mod 57 | primes | 55.9 % |
| A142671 | Primes congruent to 10 mod 57 | primes | 55.8 % |
| A142672 | Primes congruent to 11 mod 57 | primes | 56.0 % |
| A142673 | Primes congruent to 13 mod 57 | primes | 56.0 % |
| A142674 | Primes congruent to 14 mod 57 | primes | 56.0 % |
| A142675 | Primes congruent to 16 mod 57 | primes | 55.5 % |
| A142676 | Primes congruent to 17 mod 57 | primes | 55.9 % |
| A142677 | Primes congruent to 20 mod 57 | primes | 55.7 % |
| A142678 | Primes congruent to 22 mod 57 | primes | 55.8 % |
| A142679 | Primes congruent to 23 mod 57 | primes | 55.9 % |
| A142680 | Primes congruent to 25 mod 57 | primes | 55.8 % |
| A142681 | Primes congruent to 26 mod 57 | primes | 55.8 % |
| A142682 | Primes congruent to 28 mod 57 | primes | 56.0 % |
| A142683 | Primes congruent to 29 mod 57 | primes | 55.8 % |
| A142684 | Primes congruent to 31 mod 57 | primes | 56.0 % |
| A142685 | Primes congruent to 32 mod 57 | primes | 56.1 % |
| A142686 | Primes congruent to 34 mod 57 | primes | 55.9 % |
| A142786 | Primes congruent to 7 mod 60 | primes | 52.8 % |
| A142787 | Primes congruent to 13 mod 60 | primes | 52.8 % |
| A142788 | Primes congruent to 17 mod 60 | primes | 52.8 % |
| A142789 | Primes congruent to 19 mod 60 | primes | 52.9 % |
| A142790 | Primes congruent to 23 mod 60 | primes | 53.0 % |
| A142791 | Primes congruent to 29 mod 60 | primes | 53.0 % |
| A142792 | Primes congruent to 31 mod 60 | primes | 52.8 % |
| A142793 | Primes congruent to 37 mod 60 | primes | 52.9 % |
| A142794 | Primes congruent to 41 mod 60 | primes | 53.0 % |
| A142795 | Primes congruent to 43 mod 60 | primes | 52.8 % |
| A142796 | Primes congruent to 47 mod 60 | primes | 52.7 % |
| A142797 | Primes congruent to 49 mod 60 | primes | 52.9 % |
| A142798 | Primes congruent to 53 mod 60 | primes | 52.7 % |
| A142799 | Primes congruent to 59 mod 60 | primes | 52.6 % |
| A142889 | Primes congruent to 1 mod 63 | primes | 57.2 % |
| A142890 | Primes congruent to 2 mod 63 | primes | 57.7 % |
| A142891 | Primes congruent to 4 mod 63 | primes | 57.4 % |
| A142892 | Primes congruent to 5 mod 63 | primes | 57.2 % |
| A142893 | Primes congruent to 8 mod 63 | primes | 57.3 % |
| A142894 | Primes congruent to 10 mod 63 | primes | 57.2 % |
| A142895 | Primes congruent to 11 mod 63 | primes | 57.4 % |
| A142896 | Primes congruent to 13 mod 63 | primes | 57.4 % |
| A142897 | Primes congruent to 16 mod 63 | primes | 57.4 % |
| A142898 | Primes congruent to 17 mod 63 | primes | 57.2 % |
| A142899 | Primes congruent to 19 mod 63 | primes | 57.4 % |
| A142900 | Primes congruent to 20 mod 63 | primes | 57.3 % |
| A142901 | Primes congruent to 22 mod 63 | primes | 57.3 % |
| A142902 | Primes congruent to 23 mod 63 | primes | 57.2 % |
| A142903 | Primes congruent to 25 mod 63 | primes | 57.3 % |
| A142904 | Primes congruent to 26 mod 63 | primes | 57.4 % |
| A142905 | Primes congruent to 29 mod 63 | primes | 57.4 % |
| A142906 | Primes congruent to 31 mod 63 | primes | 57.4 % |
| A142907 | Primes congruent to 32 mod 63 | primes | 57.2 % |
| A142908 | Primes congruent to 34 mod 63 | primes | 57.3 % |
| A142925 | Primes congruent to 1 mod 64 | primes | 48.0 % |
| A142926 | Primes congruent to 3 mod 64 | primes | 48.0 % |
| A142927 | Primes congruent to 5 mod 64 | primes | 48.3 % |
| A142928 | Primes congruent to 7 mod 64 | primes | 48.1 % |
| A142929 | Primes congruent to 9 mod 64 | primes | 48.0 % |
| A142930 | Primes congruent to 11 mod 64 | primes | 47.9 % |
| A142931 | Primes congruent to 13 mod 64 | primes | 48.2 % |
| A142932 | Primes congruent to 15 mod 64 | primes | 47.8 % |
| A142933 | Primes congruent to 17 mod 64 | primes | 48.2 % |
| A142934 | Primes congruent to 19 mod 64 | primes | 48.0 % |
| A142935 | Primes congruent to 23 mod 64 | primes | 47.8 % |
| A142936 | Primes congruent to 25 mod 64 | primes | 47.8 % |
| A142937 | Primes congruent to 27 mod 64 | primes | 47.8 % |
| A142938 | Primes congruent to 29 mod 64 | primes | 47.9 % |
| A142939 | Primes congruent to 31 mod 64 | primes | 48.1 % |
| A142940 | Primes congruent to 35 mod 64 | primes | 48.0 % |
| A142941 | Primes congruent to 37 mod 64 | primes | 48.1 % |
| A142942 | Primes congruent to 39 mod 64 | primes | 47.9 % |
| A142943 | Primes congruent to 41 mod 64 | primes | 48.0 % |
| A142944 | Primes congruent to 43 mod 64 | primes | 47.9 % |
| A142945 | Primes congruent to 45 mod 64 | primes | 48.1 % |
| A143058 | a(n) = (n^3 + 18*n^2 + 17*n + 6)/6 | polynomial | 100.0 % |
| A143164 | Numbers with digitsum 13, in increasing order | digit rule | 30.9 % |
| A143166 | a(n) = n*(8*n^2 + 1)/3 | polynomial | 100.0 % |
| A143689 | a(n) = (3*n^2 - n + 2)/2 | polynomial | 100.0 % |
| A143826 | Numbers k such that 6*k^2 - 1 is prime | prime values | 23.6 % |
| A143827 | Numbers k such that 8*k^2 - 1 is prime | prime values | 21.0 % |
| A143828 | Primes of the form 10*k^2 - 1 | primes | 100.0 % |
| A143829 | Numbers n such that 10n^2 - 1 is prime | prime values | 18.8 % |
| A143831 | Numbers n such that 12n^2 - 1 is prime | prime values | 19.7 % |
| A143832 | Primes of the form 14 n^2-1 | primes | 100.0 % |
| A143833 | Numbers n such that 14n^2 - 1 is prime | prime values | 24.3 % |
| A143967 | Numbers containing only digits 3 or 7 in decimal representation | digit rule | 18.0 % |
| A143988 | Numbers congruent to {5, 13} mod 18 | residue class | 26.0 % |
| A144255 | Semiprimes of the form k^2+1 | multiplicative | 100.0 % |
| A144312 | a(n) = 5*n*(5*n + 1)/2 | polynomial | 100.0 % |
| A144314 | a(n) = 3*n*(6*n + 1) | polynomial | 100.0 % |
| A144390 | a(n) = 3*n^2 - n - 1 | polynomial | 100.0 % |
| A144391 | a(n) = 3*n^2 + n - 1 | polynomial | 100.0 % |
| A144410 | a(n) = 4*(3*n+1)*(3*n+2) | polynomial | 100.0 % |
| A144449 | a(n) = 4*(4 + 9*n^2 + 15*n) | polynomial | 100.0 % |
| A144459 | a(n) = (3*n+1)*(5*n+1) | polynomial | 100.0 % |
| A144555 | a(n) = 14*n^2 | polynomial | 100.0 % |
| A144571 | Primes of the form 81n^2 - 90n + 26 | primes | 100.0 % |
| A145018 | a(n) = (n^2 - n + 8)/2 | polynomial | 100.0 % |
| A145069 | a(n) = n*(n^2 + 3*n + 5)/3 | polynomial | 100.0 % |
| A145202 | Primes of form 4*n^2 + 4*n + 653 | primes | 100.0 % |
| A145471 | Primes p such that (5+p)/2 is prime | primes | 49.5 % |
| A145481 | Primes p such that 2*p - 17 is prime | primes | 46.7 % |
| A145482 | Primes p such that 2*p - 19 is prime | primes | 47.1 % |
| A145483 | Primes p such that 2*p - 23 is prime | primes | 46.9 % |
| A145485 | Primes p such that 2*p - 31 is prime | primes | 47.3 % |
| A145486 | Primes p such that 2*p - 37 is prime | primes | 47.2 % |
| A145678 | a(n) = 441*n^2 - 21 | polynomial | 100.0 % |
| A145749 | Numbers n such that sigma(n)+phi(n)=sigma(n+1)+phi(n+1) | divisor functions | 47.3 % |
| A145910 | a(n) = (1 + 3*n)*(4 + 3*n)/2 | polynomial | 100.0 % |
| A145980 | a(n) = 29 + 73*n + 37*n^2 | polynomial | 100.0 % |
| A145995 | a(n) = 8 - 12*n + 5*n^2 | polynomial | 100.0 % |
| A146301 | a(n) = (8*n+3)*(8*n+7) | polynomial | 100.0 % |
| A146302 | a(n) = (8*n+5)*(8*n+9) | polynomial | 100.0 % |
| A146507 | Numbers congruent to {1, 13} mod 42 | residue class | 39.8 % |
| A146509 | Numbers that are congruent to {1, 5} mod 18 | residue class | 22.6 % |
| A146510 | Numbers congruent to {1, 4} mod 15 | residue class | 28.4 % |
| A146512 | Numbers congruent to {1, 3} mod 12 | residue class | 29.5 % |
| A147296 | a(n) = n*(9*n+2) | polynomial | 100.0 % |
| A147562 | Number of "ON" cells at n-th stage in the "Ulam-Warburton" two-dimensional cellular automaton | self-referential | 70.9 % |
| A147874 | a(n) = (5*n-7)*(n-1) | polynomial | 100.0 % |
| A147991 | Sequence S such that 1 is in S and if x is in S, then 3x-1 and 3x+1 are in S | self-referential | 9.3 % |
| A151953 | Primes of the form 6*n^2+17 | primes | 100.0 % |
| A151972 | Numbers that are congruent to {0, 1, 6, 10} mod 15 | residue class | 22.2 % |
| A151977 | Numbers that are congruent to {0, 1} mod 16 | residue class | 23.0 % |
| A151978 | Numbers that are congruent to {0, 1} mod 17 | residue class | 20.0 % |
| A151983 | Numbers congruent to {0, 1} mod 32 | residue class | 25.1 % |
| A151984 | Numbers that are congruent to {0, 1} mod 64 | residue class | 27.2 % |
| A152161 | a(n) = 100*n^2 + 100*n + 21 | polynomial | 100.0 % |
| A152312 | Primes without odd prime digits | primes | 34.1 % |
| A152313 | Primes without 0's or primes in their decimal expansion | primes | 35.6 % |
| A152470 | Largest of three consecutive primes whose sum is a prime | primes | 36.0 % |
| A152579 | a(n) = (10*n+3)*(10*n+17) | polynomial | 100.0 % |
| A152691 | Multiples of 64 | residue class | 9.7 % |
| A152811 | a(n) = 2*(n^2 + 2*n - 2) | polynomial | 100.0 % |
| A152813 | a(n) = 2*n^2 + 10*n + 3 | polynomial | 100.0 % |
| A152950 | a(n) = 3 + n*(n-1)/2 | polynomial | 100.0 % |
| A153037 | a(n) = 2*n^2 + 16*n + 23 | polynomial | 100.0 % |
| A153127 | a(n) = (2*n + 1)*(5*n + 6) | polynomial | 100.0 % |
| A153134 | Numbers k such that 6k - 7 is prime | prime values | 17.4 % |
| A153135 | Primes p such that 6*p - 7 is also prime | primes | 35.4 % |
| A153145 | Primes p such that 2*p + 19 is also prime | primes | 47.4 % |
| A153169 | a(n) = 4*n^2 + 12*n + 3 | polynomial | 100.0 % |
| A153183 | Numbers k such that 3k-2 is prime | prime values | 28.1 % |
| A153213 | Primes p such that both p-2 and p+2 are not squarefree | primes | 48.5 % |
| A153218 | Numbers k such that 6k + 7 is prime | prime values | 17.2 % |
| A153238 | Numbers k such that 2*k + 3 is composite | complement | 11.5 % |
| A153355 | Numbers k such that 5k-1 is a prime | prime values | 21.3 % |
| A153417 | Primes p such that p+14 is also prime | primes | 46.0 % |
| A153418 | Primes p such that p+18 is also prime | primes | 34.9 % |
| A153419 | Primes p such that p+20 is also prime | primes | 44.9 % |
| A153422 | Primes of the form k^2 + 15*k + 13 | primes | 100.0 % |
| A153423 | Primes of the form k^2 + 9*k + 241 | primes | 100.0 % |
| A153502 | Primes of the form 3*n^2 - 3*n + 11 | primes | 100.0 % |
| A153590 | Primes p such that p^2 + 3p + 1 is also prime | primes | 39.9 % |
| A153591 | Primes p such that 6p^2+6p+1 is also prime | primes | 38.7 % |
| A153642 | a(n) = 4*n^2 + 24*n + 8 | polynomial | 100.0 % |
| A153644 | a(n) = 4*n^2 + 28*n + 10 | polynomial | 100.0 % |
| A153762 | Numbers k such that 8k + 9 is prime | prime values | 16.6 % |
| A153766 | Numbers k such that 8k-9 is prime | prime values | 17.1 % |
| A153767 | Primes p such that 8*p - 9 is also prime | primes | 37.8 % |
| A153781 | Numbers n such that n^2+13n+23 is prime | prime values | 20.7 % |
| A153812 | Primes p such that 6*p^2+1 is also prime | primes | 49.2 % |
| A153974 | Numbers n such that n^3 - 3 is prime | prime values | 23.0 % |
| A153976 | a(n) = n^3 + (n+2)^3 | polynomial | 100.0 % |
| A154105 | a(n) = 12*n^2 + 18*n + 7 | polynomial | 100.0 % |
| A154106 | a(n) = 12*n^2 + 22*n + 11 | polynomial | 100.0 % |
| A154115 | Numbers n such that n + 3 is prime | prime values | 16.0 % |
| A154253 | Primes of the form 9n^2-8n+2 | primes | 100.0 % |
| A154254 | a(n) = 9*n^2 - 8*n + 2 | polynomial | 100.0 % |
| A154276 | Primes of the form 81*k^2 - 72*k + 17 | primes | 100.0 % |
| A154277 | a(n) = 81*n^2 - 72*n + 17 | polynomial | 100.0 % |
| A154314 | Numbers with not more than two distinct digits in ternary representation | digit rule | 11.4 % |
| A154319 | Primes p such that p^2 + 2*p - 4 is also prime | primes | 39.8 % |
| A154320 | Primes p such that p^2 + 8*p - 4 is also prime | primes | 40.2 % |
| A154357 | a(n) = 25*n^2 - 14*n + 2 | polynomial | 100.0 % |
| A154359 | a(n) = 1250*n^2 - 700*n + 99 | polynomial | 100.0 % |
| A154374 | a(n) = 1250*n^2 - 100*n + 1 | polynomial | 100.0 % |
| A154375 | a(n) = 1250*n^2 + 100*n + 1 | polynomial | 100.0 % |
| A154376 | a(n) = 25*n^2 - 2*n | polynomial | 100.0 % |
| A154377 | a(n) = 25*n^2 + 2*n | polynomial | 100.0 % |
| A154405 | Primes of the form 20n^2+8n+1 | primes | 100.0 % |
| A154409 | Primes of the form 10n^2+6n+1 | primes | 100.0 % |
| A154414 | Primes of the form 20*k^2 + 32*k + 13 | primes | 100.0 % |
| A154419 | Primes of the form 20*k^2 + 36*k + 17 | primes | 100.0 % |
| A154428 | Primes of the form 50n^2 + 10n + 1 | primes | 100.0 % |
| A154431 | Primes p such that 5p^2 - p + 1 is prime | primes | 44.0 % |
| A154432 | Numbers k such that 5k^2-k+1 is prime | prime values | 23.1 % |
| A154514 | a(n) = 648*n^2 - 72*n + 1 | polynomial | 100.0 % |
| A154515 | a(n) = 648*n^2 + 72*n + 1 | polynomial | 100.0 % |
| A154516 | a(n) = 9n^2 - n | polynomial | 100.0 % |
| A154517 | a(n) = 9*n^2 + n | polynomial | 100.0 % |
| A154560 | a(n) = (n+3)^2*n/2 + 1 | polynomial | 100.0 % |
| A154571 | Numbers that are congruent to {0, 3, 4, 5, 7, 8} mod 12 | residue class | 5.9 % |
| A154575 | a(n) = 2*n^2 + 12*n + 4 | polynomial | 100.0 % |
| A154576 | a(n) = 2*n^2 + 14*n + 5 | polynomial | 100.0 % |
| A154577 | Primes of the form 2n^2+14n+5 | primes | 100.0 % |
| A154590 | a(n) = 2*n^2 + 16*n + 6 | polynomial | 100.0 % |
| A154591 | a(n) = 2*n^2 + 18*n + 7 | polynomial | 100.0 % |
| A154599 | a(n) = 2*n^2 + 20*n + 8 | polynomial | 100.0 % |
| A154600 | a(n) = 2*n^2 + 22*n + 9 | polynomial | 100.0 % |
| A154601 | Primes of the form 2*n^2 + 22*n + 9 | primes | 100.0 % |
| A154607 | Numbers n such that 11*n + 4 is prime | prime values | 31.1 % |
| A154608 | Primes p such that 11*p + 4 is also prime | primes | 47.2 % |
| A154610 | Numbers n such that 13n + 5 is prime | prime values | 21.2 % |
| A154620 | Primes p such that 31p+14 is prime | primes | 46.9 % |
| A154622 | Primes p such that 67*p + 32 is also prime | primes | 48.5 % |
| A154625 | Primes p such that 71*p + 34 is also prime | primes | 48.4 % |
| A154648 | Primes of the form n^2 - 13 | primes | 100.0 % |
| A154650 | Primes p such that 4*p^2-8*p-9 is a prime | primes | 47.9 % |
| A154651 | Numbers k such that 991*k^2+1 is a prime | prime values | 26.0 % |
| A154761 | Primes without {1, 9} as digits | primes | 32.6 % |
| A154777 | Numbers of the form x^2 + 2*y^2 with positive integers x and y | quadratic form | 14.9 % |
| A155055 | Primes without positive even digits | primes | 27.2 % |
| A155131 | Numbers k such that 2^44+k is prime | prime values | 35.8 % |
| A155152 | Numbers k such that 13*k^2 + 3*k + 1 is prime | prime values | 20.2 % |
| A155153 | Primes p such that 13*p^2+3*p+1 is a prime | primes | 39.9 % |
| A155212 | a(n) = (n^2 + 9*n + 4)/2 | polynomial | 100.0 % |
| A155461 | a(n) = n^2 + 52*n + 30 | polynomial | 100.0 % |
| A155702 | Primes of the form 2n^2-9 | primes | 100.0 % |
| A155703 | Primes p such that 2*p^2 + 16*p + 23 is also prime | primes | 49.2 % |
| A155722 | Numbers k such that 2*k + 9 is prime | prime values | 17.2 % |
| A155736 | Numbers n such that 4*n^2+2*n-1 is a prime | prime values | 20.2 % |
| A155737 | Primes of the form 4*n^2 + 2*n -1 | primes | 100.0 % |
| A155738 | Primes p such that 4*p^2+2*p-1 is also prime | primes | 40.0 % |
| A155753 | a(n) = (n^3 - n + 9)/3 | polynomial | 100.0 % |
| A155757 | a(n) = (n^3 - n + 15)/3 | polynomial | 100.0 % |
| A155771 | Numbers n such that 2*n^2+2*n-41 is a prime | prime values | 18.5 % |
| A155772 | Primes p such that 2*p^2+2*p-41 is a prime | primes | 37.5 % |
| A155853 | Numbers n such that 13*n + 3 is a prime | prime values | 16.2 % |
| A155937 | Numbers n such that 13*n + 8 is a prime | prime values | 32.8 % |
| A155938 | Primes p such that 13*p + 8 is also prime | primes | 47.7 % |
| A155942 | Numbers k such that 16k+1 is a prime | prime values | 23.4 % |
| A155943 | Primes p such that 16*p + 1 is also prime | primes | 48.3 % |
| A155965 | a(n) = n*(n^2+4) | polynomial | 100.0 % |
| A155966 | a(n) = 2*n^2 + 8 | polynomial | 100.0 % |
| A156004 | Primes p such that 8*p+21 is prime | primes | 36.5 % |
| A156005 | Primes p such that 16*p+45 is prime | primes | 35.0 % |
| A156007 | Primes p such that 32*p + 93 is also prime | primes | 37.7 % |
| A156009 | Primes p such that 64*p + 189 is also prime | primes | 37.1 % |
| A156104 | Primes p such that p+36 is also prime | primes | 36.2 % |
| A156105 | Primes p such that p + 72 is also prime | primes | 36.4 % |
| A156107 | Primes p such that p + 144 is also prime | primes | 36.1 % |
| A156226 | Primes of the form 9*n^2 + 1 | primes | 100.0 % |
| A156252 | Primes of the form 4*n^2+6*n+43 | primes | 100.0 % |
| A156300 | Primes p such that 4*p - 5 is also prime | primes | 45.2 % |
| A156619 | Numbers congruent to {7, 18} mod 25 | residue class | 29.6 % |
| A156635 | a(n) = 144*n^2 - n | polynomial | 100.0 % |
| A156639 | a(n) = 169*n^2 - 140*n + 29 | polynomial | 100.0 % |
| A156640 | a(n) = 169*n^2 + 140*n + 29 | polynomial | 100.0 % |
| A156655 | Primes of the form 1000*k + 1 | primes | 71.1 % |
| A156676 | a(n) = 81*n^2 - 44*n + 6 | polynomial | 100.0 % |
| A156683 | Integers that can occur as either leg in more than one primitive Pythagorean triple | quadratic form | 13.7 % |
| A156711 | a(n) = 144*n^2 - 161*n + 45 | polynomial | 100.0 % |
| A156719 | a(n) = 144*n^2 - 127*n + 28 | polynomial | 100.0 % |
| A156721 | a(n) = 57122*n^2 - 47320*n + 9801 | polynomial | 100.0 % |
| A156735 | a(n) = 57122*n^2 + 47320*n + 9801 | polynomial | 100.0 % |
| A156774 | a(n) = 6561*n^2 - 3564*n + 485 | polynomial | 100.0 % |
| A156812 | a(n) = 225*n^2 - 199*n + 44 | polynomial | 100.0 % |
| A156813 | a(n) = 225*n^2 - n | polynomial | 100.0 % |
| A156814 | a(n) = 225*n^2 + n | polynomial | 100.0 % |
| A156841 | a(n) = 529n^2 - 312n + 46 | polynomial | 100.0 % |
| A156842 | a(n) = 529*n^2 - 746*n + 263 | polynomial | 100.0 % |
| A156843 | a(n) = 279841n^2 - 165048n + 24335 | polynomial | 100.0 % |
| A156844 | a(n) = 279841*n^2 - 394634*n + 139128 | polynomial | 100.0 % |
| A156849 | Numbers k such that k^2 == 2 (mod 23^2) | residue class | 47.4 % |
| A156853 | a(n) = 2025*n^2 - 649*n + 52 | polynomial | 100.0 % |
| A156854 | a(n) = 2025*n^2 - 3401*n + 1428 | polynomial | 100.0 % |
| A156855 | a(n) = 2025*n^2 - n | polynomial | 100.0 % |
| A156856 | a(n) = 2025*n^2 + n | polynomial | 100.0 % |
| A157010 | a(n) = 1681*n^2 - 756*n + 85 | polynomial | 100.0 % |
| A157040 | a(n) = 121*n^2 - 2*n | polynomial | 100.0 % |
| A157110 | a(n) = 1681*n^2 - 2606*n + 1010 | polynomial | 100.0 % |
| A157201 | Numbers k such that 66*k + 1 is prime | prime values | 18.4 % |
| A157202 | Numbers k such that 66*k + 5 is prime | prime values | 16.6 % |
| A157262 | a(n) = 36*n^2 - 55*n + 21 | polynomial | 100.0 % |
| A157264 | a(n) = 10368*n^2 - 15840*n + 6049 | polynomial | 100.0 % |
| A157265 | a(n) = 36*n^2 - 17*n + 2 | polynomial | 100.0 % |
| A157267 | a(n) = 10368*n^2 - 4896*n + 577 | polynomial | 100.0 % |
| A157286 | a(n) = 36*n^2 - n | polynomial | 100.0 % |
| A157288 | a(n) = 10368*n^2 - 288*n + 1 | polynomial | 100.0 % |
| A157324 | a(n) = 36*n^2 + n | polynomial | 100.0 % |
| A157326 | a(n) = 10368*n^2 + 288*n + 1 | polynomial | 100.0 % |
| A157331 | a(n) = 128*n^2 - 32*n + 1 | polynomial | 100.0 % |
| A157337 | a(n) = 128*n^2 + 32*n + 1 | polynomial | 100.0 % |
| A157352 | Products (semiprimes) of two distinct safe primes | multiplicative | 50.0 % |
| A157362 | a(n) = 49*n^2 - 2*n | polynomial | 100.0 % |
| A157364 | a(n) = 4802*n^2 - 196*n + 1 | polynomial | 100.0 % |
| A157365 | a(n) = 49*n^2 + 2*n | polynomial | 100.0 % |
| A157367 | a(n) = 4802*n^2 + 196*n + 1 | polynomial | 100.0 % |
| A157368 | a(n) = 49*n^2 - 78*n + 31 | polynomial | 100.0 % |
| A157370 | a(n) = 2401*n^2 - 3822*n + 1520 | polynomial | 100.0 % |
| A157373 | a(n) = 49*n^2 - 20*n + 2 | polynomial | 100.0 % |
| A157375 | a(n) = 2401*n^2 - 980*n + 99 | polynomial | 100.0 % |
| A157376 | a(n) = 6561*n^2 - 7732*n + 2278 | polynomial | 100.0 % |
| A157437 | Primes congruent to 1, 5, 7, or 11 modulo 24 | primes | 28.1 % |
| A157440 | a(n) = 121*n^2 - 204*n + 86 | polynomial | 100.0 % |
| A157442 | a(n) = 14641*n^2 - 24684*n + 10405 | polynomial | 100.0 % |
| A157443 | a(n) = 121*n^2 - 38*n + 3 | polynomial | 100.0 % |
| A157445 | a(n) = 14641*n^2 - 4598*n + 362 | polynomial | 100.0 % |
| A157446 | a(n) = 16*n^2 - n | polynomial | 100.0 % |
| A157448 | a(n) = 2048*n^2 - 128*n + 1 | polynomial | 100.0 % |
| A157468 | Primes of the form sqrt(p-1)-1, where p is a prime | primes | 42.1 % |
| A157474 | a(n) = 16n^2 + n | polynomial | 100.0 % |
| A157476 | a(n) = 2048n^2 + 128n + 1 | polynomial | 100.0 % |
| A157483 | Numbers k such that k-1 and k+1 are divisible by exactly 3 primes, counted with multiplicity | multiplicative | 22.1 % |
| A157506 | a(n) = 13122*n^2 + 324*n + 1 | polynomial | 100.0 % |
| A157507 | a(n) = 81*n^2 - 2*n | polynomial | 100.0 % |
| A157509 | a(n) = 13122*n^2 - 324*n + 1 | polynomial | 100.0 % |
| A157511 | a(n) = 5000*n^2 + 200*n + 1 | polynomial | 100.0 % |
| A157514 | a(n) = 25*n^2 - n | polynomial | 100.0 % |
| A157516 | a(n) = 5000*n^2 - 200*n + 1 | polynomial | 100.0 % |
| A157610 | a(n) = 29282*n^2 - 484*n + 1 | polynomial | 100.0 % |
| A157614 | a(n) = 29282*n^2 + 484*n + 1 | polynomial | 100.0 % |
| A157618 | a(n) = 625*n^2 - 886*n + 314 | polynomial | 100.0 % |
| A157620 | a(n) = 781250*n^2 - 1107500*n + 392499 | polynomial | 100.0 % |
| A157621 | a(n) = 625n^2 - 364n + 53 | polynomial | 100.0 % |
| A157623 | a(n) = 781250*n^2 - 455000*n + 66249 | polynomial | 100.0 % |
| A157626 | a(n) = 100*n^2 - 151*n + 57 | polynomial | 100.0 % |
| A157628 | a(n) = 80000n^2 - 120800n + 45601 | polynomial | 100.0 % |
| A157651 | a(n) = 100*n^2 - 49*n + 6 | polynomial | 100.0 % |
| A157653 | a(n) = 80000*n^2 - 39200*n + 4801 | polynomial | 100.0 % |
| A157659 | a(n) = 100*n^2 - n | polynomial | 100.0 % |
| A157661 | a(n) = 80000*n^2 - 800*n + 1 | polynomial | 100.0 % |
| A157664 | a(n) = 80000*n^2 + 800*n + 1 | polynomial | 100.0 % |
| A157665 | a(n) = 729*n^2 - 1016*n + 354 | polynomial | 100.0 % |
| A157667 | a(n) = 531441*n^2 - 740664*n + 258065 | polynomial | 100.0 % |
| A157668 | a(n) = 729*n^2 - 442*n + 67 | polynomial | 100.0 % |
| A157670 | a(n) = 531441*n^2 - 322218*n + 48842 | polynomial | 100.0 % |
| A157730 | a(n) = 441*n^2 - 488*n + 135 | polynomial | 100.0 % |
| A157732 | a(n) = 388962*n^2 - 430416*n + 119071 | polynomial | 100.0 % |
| A157734 | a(n) = 441*n^2 - 394*n + 88 | polynomial | 100.0 % |
| A157736 | a(n) = 388962*n^2 - 347508*n + 77617 | polynomial | 100.0 % |
| A157737 | a(n) = 441*n^2 - 2*n | polynomial | 100.0 % |
| A157739 | a(n) = 388962*n^2 - 1764*n + 1 | polynomial | 100.0 % |
| A157741 | a(n) = 388962*n^2 + 1764*n + 1 | polynomial | 100.0 % |
| A157757 | a(n) = 2809*n^2 - 4618*n + 1898 | polynomial | 100.0 % |
| A157760 | a(n) = 2809*n^2 - 1000*n + 89 | polynomial | 100.0 % |
| A157768 | a(n) = 27225*n^2 - 39202*n + 14112 | polynomial | 100.0 % |
| A157772 | Numbers n such that 100n + 13 is prime | prime values | 21.6 % |
| A157786 | a(n) = 27225*n^2 - 15248*n + 2135 | polynomial | 100.0 % |
| A157796 | a(n) = 27225*n^2 - 12098*n + 1344 | polynomial | 100.0 % |
| A157802 | a(n) = 27225*n^2 - 51302*n + 24168 | polynomial | 100.0 % |
| A157814 | a(n) = 27225*n^2 - 2*n | polynomial | 100.0 % |
| A157820 | a(n) = 27225*n^2 + 2*n | polynomial | 100.0 % |
| A157824 | a(n) = 3600*n^2 - 6751*n + 3165 | polynomial | 100.0 % |
| A157838 | a(n) = 3600*n^2 - 6049*n + 2541 | polynomial | 100.0 % |
| A157842 | a(n) = 3600*n^2 - 5599*n + 2177 | polynomial | 100.0 % |
| A157853 | a(n) = 3600*n^2 - 1601*n + 178 | polynomial | 100.0 % |
| A157857 | a(n) = 3600*n^2 - n | polynomial | 100.0 % |
| A157861 | a(n) = 3600*n^2 + n | polynomial | 100.0 % |
| A157872 | a(n) = 9*n^2 - 3 | polynomial | 100.0 % |
| A157888 | a(n) = 81*n^2 + 9 | polynomial | 100.0 % |
| A157889 | a(n) = 18*n^2 + 1 | polynomial | 100.0 % |
| A157909 | a(n) = 81*n^2 - 9 | polynomial | 100.0 % |
| A157910 | a(n) = 18*n^2 - 1 | polynomial | 100.0 % |
| A157912 | a(n) = 64*n^2 + 16 | polynomial | 100.0 % |
| A157913 | a(n) = 64*n^2 - 16 | polynomial | 100.0 % |
| A157914 | a(n) = 8*n^2 - 1 | polynomial | 100.0 % |
| A157915 | a(n) = 625*n^2 + 25 | polynomial | 100.0 % |
| A157916 | a(n) = 50*n^2 + 1 | polynomial | 100.0 % |
| A157918 | a(n) = 625*n^2 - 25 | polynomial | 100.0 % |
| A157919 | a(n) = 50*n^2 - 1 | polynomial | 100.0 % |
| A157923 | a(n) = 49*n^2 - n | polynomial | 100.0 % |
| A157931 | Numbers that are both the sum and the product of two primes | multiplicative | 21.8 % |
| A157948 | a(n) = 64*n^2 - n | polynomial | 100.0 % |
| A157953 | a(n) = 81n^2 - n | polynomial | 100.0 % |
| A157960 | a(n) = 121*n^2 - n | polynomial | 100.0 % |
| A157974 | Primes p such that 12*p + 11 is also prime | primes | 36.5 % |
| A157975 | Primes p such that 16*p + 15 is also prime | primes | 35.2 % |
| A157976 | Primes p such that 18*p + 17 is also prime | primes | 36.8 % |
| A157977 | Primes p such that 20*p + 19 is also prime | primes | 45.7 % |
| A157978 | Primes p such that 4*p - 3 is also a prime | primes | 37.0 % |
| A157998 | a(n) = 169*n^2 - n | polynomial | 100.0 % |
| A158003 | a(n) = 196*n^2 - n | polynomial | 100.0 % |
| A158010 | a(n) = 256*n^2 - n | polynomial | 100.0 % |
| A158015 | Primes p such that 6*p-1 is also prime | primes | 37.3 % |
| A158016 | Primes p such that 8*p-1 is also prime | primes | 47.8 % |
| A158017 | Primes p such that 10*p-1 is also prime | primes | 46.1 % |
| A158056 | a(n) = 16*n^2 + 2*n | polynomial | 100.0 % |
| A158058 | a(n) = 16*n^2 - 2*n | polynomial | 100.0 % |
| A158062 | a(n) = 36*n^2 - 2*n | polynomial | 100.0 % |
| A158064 | a(n) = 36*n^2 + 2*n | polynomial | 100.0 % |
| A158067 | a(n) = 64*n^2 - 2*n | polynomial | 100.0 % |
| A158070 | a(n) = 64*n^2 + 2*n | polynomial | 100.0 % |
| A158127 | a(n) = 100*n^2 + 2*n | polynomial | 100.0 % |
| A158129 | a(n) = 100*n^2 - 2*n | polynomial | 100.0 % |
| A158132 | a(n) = 144n^2 + 2n | polynomial | 100.0 % |
| A158135 | a(n) = 144*n^2 - 2*n | polynomial | 100.0 % |
| A158186 | a(n) = 10*n^2 - 7*n + 1 | polynomial | 100.0 % |
| A158187 | a(n) = 10*n^2 + 1 | polynomial | 100.0 % |
| A158218 | a(n) = 169*n^2 - 2*n | polynomial | 100.0 % |
| A158220 | a(n) = 169*n^2 + 2*n | polynomial | 100.0 % |
| A158222 | a(n) = 196*n^2 + 2*n | polynomial | 100.0 % |
| A158224 | a(n) = 196*n^2 - 2*n | polynomial | 100.0 % |
| A158226 | a(n) = 225*n^2 - 2*n | polynomial | 100.0 % |
| A158228 | a(n) = 225n^2 + 2n | polynomial | 100.0 % |
| A158230 | a(n) = 256*n^2 + 2*n | polynomial | 100.0 % |
| A158249 | a(n) = 256*n^2 - 2*n | polynomial | 100.0 % |
| A158252 | a(n) = 289*n^2 - 2*n | polynomial | 100.0 % |
| A158254 | a(n) = 289n^2 + 2n | polynomial | 100.0 % |
| A158271 | a(n) = 324n^2 + 2n | polynomial | 100.0 % |
| A158305 | a(n) = 324n^2 - 2n | polynomial | 100.0 % |
| A158307 | a(n) = 361*n^2 - 2*n | polynomial | 100.0 % |
| A158309 | a(n) = 361*n^2 + 2*n | polynomial | 100.0 % |
| A158312 | a(n) = 400*n^2 + 2*n | polynomial | 100.0 % |
| A158316 | a(n) = 400*n^2 - 2*n | polynomial | 100.0 % |
| A158318 | Primes p such that 5p-2 is prime | primes | 45.7 % |
| A158321 | a(n) = 441n^2 + 2n | polynomial | 100.0 % |
| A158325 | a(n) = 484*n^2 + 2*n | polynomial | 100.0 % |
| A158329 | a(n) = 484*n^2 - 2*n | polynomial | 100.0 % |
| A158364 | a(n) = 529*n^2 - 2*n | polynomial | 100.0 % |
| A158367 | a(n) = 529*n^2 + 2*n | polynomial | 100.0 % |
| A158369 | a(n) = 576*n^2 + 2*n | polynomial | 100.0 % |
| A158371 | a(n) = 576*n^2 - 2*n | polynomial | 100.0 % |
| A158373 | a(n) = 625*n^2 - 2*n | polynomial | 100.0 % |
| A158382 | a(n) = 625*n^2 + 2*n | polynomial | 100.0 % |
| A158385 | a(n) = 676*n^2 + 2*n | polynomial | 100.0 % |
| A158392 | a(n) = 676*n^2 - 2*n | polynomial | 100.0 % |
| A158394 | a(n) = 729*n^2 - 2*n | polynomial | 100.0 % |
| A158396 | a(n) = 729*n^2 + 2*n | polynomial | 100.0 % |
| A158398 | a(n) = 784*n^2 - 2*n | polynomial | 100.0 % |
| A158401 | a(n) = 841*n^2 - 2*n | polynomial | 100.0 % |
| A158403 | a(n) = 841*n^2 + 2*n | polynomial | 100.0 % |
| A158406 | a(n) = 900*n^2 + 2*n | polynomial | 100.0 % |
| A158408 | a(n) = 900*n^2 - 2*n | polynomial | 100.0 % |
| A158410 | a(n) = 961*n^2 - 2*n | polynomial | 100.0 % |
| A158413 | a(n) = 961*n^2 + 2*n | polynomial | 100.0 % |
| A158420 | a(n) = 1024*n^2 - 2*n | polynomial | 100.0 % |
| A158443 | a(n) = 16*n^2 - 4 | polynomial | 100.0 % |
| A158444 | a(n) = 16*n^2 + 4 | polynomial | 100.0 % |
| A158445 | a(n) = 25*n^2 + 5 | polynomial | 100.0 % |
| A158446 | a(n) = 25*n^2 - 5 | polynomial | 100.0 % |
| A158447 | a(n) = 10*n^2 - 1 | polynomial | 100.0 % |
| A158462 | a(n) = 36*n^2 - 6 | polynomial | 100.0 % |
| A158479 | a(n) = 36*n^2 + 6 | polynomial | 100.0 % |
| A158480 | a(n) = 12*n^2 + 1 | polynomial | 100.0 % |
| A158481 | a(n) = 49*n^2 + 7 | polynomial | 100.0 % |
| A158482 | a(n) = 14*n^2 + 1 | polynomial | 100.0 % |
| A158484 | a(n) = 49*n^2 - 7 | polynomial | 100.0 % |
| A158485 | a(n) = 14*n^2 - 1 | polynomial | 100.0 % |
| A158487 | a(n) = 64*n^2 - 8 | polynomial | 100.0 % |
| A158488 | a(n) = 64*n^2 + 8 | polynomial | 100.0 % |
| A158490 | a(n) = 100*n^2 - 10 | polynomial | 100.0 % |
| A158491 | a(n) = 20*n^2 - 1 | polynomial | 100.0 % |
| A158492 | a(n) = 100*n^2 + 10 | polynomial | 100.0 % |
| A158493 | a(n) = 20*n^2 + 1 | polynomial | 100.0 % |
| A158536 | a(n) = 121*n^2 + 11 | polynomial | 100.0 % |
| A158537 | a(n) = 22*n^2 + 1 | polynomial | 100.0 % |
| A158539 | a(n) = 121*n^2 - 11 | polynomial | 100.0 % |
| A158540 | a(n) = 22*n^2 - 1 | polynomial | 100.0 % |
| A158543 | a(n) = 144*n^2 - 12 | polynomial | 100.0 % |
| A158544 | a(n) = 24*n^2 - 1 | polynomial | 100.0 % |
| A158546 | a(n) = 144*n^2 + 12 | polynomial | 100.0 % |
| A158547 | a(n) = 24*n^2 + 1 | polynomial | 100.0 % |
| A158548 | a(n) = 169*n^2 + 13 | polynomial | 100.0 % |
| A158549 | a(n) = 26*n^2 + 1 | polynomial | 100.0 % |
| A158550 | a(n) = 169*n^2 - 13 | polynomial | 100.0 % |
| A158551 | a(n) = 26*n^2 - 1 | polynomial | 100.0 % |
| A158553 | a(n) = 196*n^2 - 14 | polynomial | 100.0 % |
| A158554 | a(n) = 28*n^2 - 1 | polynomial | 100.0 % |
| A158555 | a(n) = 196*n^2 + 14 | polynomial | 100.0 % |
| A158556 | a(n) = 28*n^2 + 1 | polynomial | 100.0 % |
| A158557 | a(n) = 225*n^2 + 15 | polynomial | 100.0 % |
| A158558 | a(n) = 30*n^2 + 1 | polynomial | 100.0 % |
| A158559 | a(n) = 225*n^2 - 15 | polynomial | 100.0 % |
| A158560 | a(n) = 30*n^2 - 1 | polynomial | 100.0 % |
| A158562 | a(n) = 256*n^2 - 16 | polynomial | 100.0 % |
| A158563 | a(n) = 32*n^2 - 1 | polynomial | 100.0 % |
| A158573 | Numbers k such that 30*k + 7 is prime | prime values | 16.4 % |
| A158574 | a(n) = 256*n^2 + 16 | polynomial | 100.0 % |
| A158575 | a(n) = 32*n^2 + 1 | polynomial | 100.0 % |
| A158585 | a(n) = 289*n^2 + 17 | polynomial | 100.0 % |
| A158586 | a(n) = 34*n^2 + 1 | polynomial | 100.0 % |
| A158587 | a(n) = 289*n^2 - 17 | polynomial | 100.0 % |
| A158588 | a(n) = 34*n^2 - 1 | polynomial | 100.0 % |
| A158589 | a(n) = 324*n^2 - 18 | polynomial | 100.0 % |
| A158590 | a(n) = 324*n^2 + 18 | polynomial | 100.0 % |
| A158591 | a(n) = 36*n^2 + 1 | polynomial | 100.0 % |
| A158592 | a(n) = 361*n^2 + 19 | polynomial | 100.0 % |
| A158593 | a(n) = 38*n^2 + 1 | polynomial | 100.0 % |
| A158595 | a(n) = 361*n^2 - 19 | polynomial | 100.0 % |
| A158596 | a(n) = 38*n^2 - 1 | polynomial | 100.0 % |
| A158597 | a(n) = 400*n^2 - 20 | polynomial | 100.0 % |
| A158598 | a(n) = 40*n^2 - 1 | polynomial | 100.0 % |
| A158601 | a(n) = 400*n^2 + 20 | polynomial | 100.0 % |
| A158602 | a(n) = 40*n^2 + 1 | polynomial | 100.0 % |
| A158603 | a(n) = 441*n^2 + 21 | polynomial | 100.0 % |
| A158604 | a(n) = 42*n^2 + 1 | polynomial | 100.0 % |
| A158614 | Numbers n such that 30*n + 11 is prime | prime values | 15.9 % |
| A158626 | a(n) = 42*n^2 - 1 | polynomial | 100.0 % |
| A158627 | a(n) = 484*n^2 - 22 | polynomial | 100.0 % |
| A158628 | a(n) = 44*n^2 - 1 | polynomial | 100.0 % |
| A158629 | a(n) = 484*n^2 + 22 | polynomial | 100.0 % |
| A158630 | a(n) = 44*n^2 + 1 | polynomial | 100.0 % |
| A158631 | a(n) = 529*n^2 + 23 | polynomial | 100.0 % |
| A158632 | a(n) = 46*n^2 + 1 | polynomial | 100.0 % |
| A158633 | a(n) = 529*n^2 - 23 | polynomial | 100.0 % |
| A158634 | a(n) = 46*n^2 - 1 | polynomial | 100.0 % |
| A158636 | a(n) = 576*n^2 - 24 | polynomial | 100.0 % |
| A158637 | a(n) = 576*n^2 + 24 | polynomial | 100.0 % |
| A158638 | a(n) = 48*n^2 + 1 | polynomial | 100.0 % |
| A158639 | a(n) = 676*n^2 - 26 | polynomial | 100.0 % |
| A158640 | a(n) = 52*n^2 - 1 | polynomial | 100.0 % |
| A158643 | a(n) = 676*n^2 + 26 | polynomial | 100.0 % |
| A158644 | a(n) = 52*n^2 + 1 | polynomial | 100.0 % |
| A158645 | a(n) = 729*n^2 + 27 | polynomial | 100.0 % |
| A158646 | a(n) = 54*n^2 + 1 | polynomial | 100.0 % |
| A158648 | Numbers n such that 30*n + 17 is prime | prime values | 17.3 % |
| A158655 | a(n) = 729*n^2 - 27 | polynomial | 100.0 % |
| A158656 | a(n) = 54*n^2 - 1 | polynomial | 100.0 % |
| A158657 | a(n) = 784*n^2 - 28 | polynomial | 100.0 % |
| A158658 | a(n) = 56*n^2 - 1 | polynomial | 100.0 % |
| A158659 | a(n) = 784*n^2 + 28 | polynomial | 100.0 % |
| A158660 | a(n) = 56*n^2 + 1 | polynomial | 100.0 % |
| A158665 | a(n) = 841*n^2 + 29 | polynomial | 100.0 % |
| A158666 | a(n) = 58*n^2 + 1 | polynomial | 100.0 % |
| A158667 | a(n) = 841*n^2 - 29 | polynomial | 100.0 % |
| A158668 | a(n) = 58*n^2 - 1 | polynomial | 100.0 % |
| A158669 | a(n) = 900*n^2 - 30 | polynomial | 100.0 % |
| A158670 | a(n) = 60*n^2 - 1 | polynomial | 100.0 % |
| A158672 | a(n) = 900*n^2 + 30 | polynomial | 100.0 % |
| A158673 | a(n) = 60*n^2 + 1 | polynomial | 100.0 % |
| A158675 | a(n) = 961*n^2 + 31 | polynomial | 100.0 % |
| A158676 | a(n) = 62*n^2 + 1 | polynomial | 100.0 % |
| A158679 | a(n) = 961*n^2 - 31 | polynomial | 100.0 % |
| A158680 | a(n) = 62*n^2 - 1 | polynomial | 100.0 % |
| A158683 | a(n) = 1024*n^2 - 32 | polynomial | 100.0 % |
| A158684 | a(n) = 64*n^2 - 1 | polynomial | 100.0 % |
| A158685 | a(n) = 32*(32*n^2 + 1) | polynomial | 100.0 % |
| A158686 | a(n) = 64*n^2 + 1 | polynomial | 100.0 % |
| A158688 | a(n) = 1089*n^2 + 33 | polynomial | 100.0 % |
| A158689 | a(n) = 66*n^2 + 1 | polynomial | 100.0 % |
| A158692 | a(n) = 1089*n^2 - 33 | polynomial | 100.0 % |
| A158693 | a(n) = 66*n^2 - 1 | polynomial | 100.0 % |
| A158704 | Nonnegative integers with an even number of even powers of 2 in their base-2 representation | digit rule | 15.3 % |
| A158705 | Nonnegative integers with an odd number of even powers of 2 in their base-2 representation | digit rule | 15.0 % |
| A158714 | Primes p such that p1 = ceiling(p/2) + p is prime and p2 = floor(p1/2) + p1 is prime | primes | 65.8 % |
| A158729 | a(n) = 1156*n^2 - 34 | polynomial | 100.0 % |
| A158730 | a(n) = 68*n^2 - 1 | polynomial | 100.0 % |
| A158731 | a(n) = 1156*n^2 + 34 | polynomial | 100.0 % |
| A158732 | a(n) = 68*n^2 + 1 | polynomial | 100.0 % |
| A158733 | a(n) = 1225*n^2 + 35 | polynomial | 100.0 % |
| A158734 | a(n) = 70*n^2 + 1 | polynomial | 100.0 % |
| A158735 | a(n) = 1225*n^2 - 35 | polynomial | 100.0 % |
| A158736 | a(n) = 70*n^2 - 1 | polynomial | 100.0 % |
| A158737 | a(n) = 1296*n^2 - 36 | polynomial | 100.0 % |
| A158738 | a(n) = 72*n^2 - 1 | polynomial | 100.0 % |
| A158739 | a(n) = 1296*n^2 + 36 | polynomial | 100.0 % |
| A158740 | a(n) = 72*n^2 + 1 | polynomial | 100.0 % |
| A158741 | a(n) = 1369*n^2 + 37 | polynomial | 100.0 % |
| A158742 | a(n) = 74*n^2 + 1 | polynomial | 100.0 % |
| A158743 | a(n) = 1369*n^2 - 37 | polynomial | 100.0 % |
| A158744 | a(n) = 74*n^2 - 1 | polynomial | 100.0 % |
| A158746 | Numbers n such that 30*n + 13 is prime | prime values | 16.9 % |
| A158764 | a(n) = 38*(38*n^2 - 1) | polynomial | 100.0 % |
| A158765 | a(n) = 76*n^2 - 1 | polynomial | 100.0 % |
| A158766 | a(n) = 1444*n^2 + 38 | polynomial | 100.0 % |
| A158767 | a(n) = 76*n^2 + 1 | polynomial | 100.0 % |
| A158768 | a(n) = 1521*n^2 + 39 | polynomial | 100.0 % |
| A158769 | a(n) = 78*n^2 + 1 | polynomial | 100.0 % |
| A158770 | a(n) = 1521*n^2 - 39 | polynomial | 100.0 % |
| A158771 | a(n) = 78*n^2 - 1 | polynomial | 100.0 % |
| A158773 | a(n) = 1600*n^2 - 40 | polynomial | 100.0 % |
| A158774 | a(n) = 80*n^2 - 1 | polynomial | 100.0 % |
| A158775 | a(n) = 1600*n^2 + 40 | polynomial | 100.0 % |
| A158776 | a(n) = 80*n^2 + 1 | polynomial | 100.0 % |
| A158791 | Numbers n such that 30*n + 23 is prime | prime values | 17.1 % |
| A158806 | Numbers n such that 30*n + 19 is prime | prime values | 16.6 % |
| A158850 | Numbers k such that 30*k + 29 is prime | prime values | 16.9 % |
| A160545 | Numbers coprime to 21 | residue class | 4.1 % |
| A160548 | Primes of the form k^2 + k + 844427 | primes | 99.9 % |
| A160591 | Indices of primes congruent to 5 modulo 12 | primes | 16.7 % |
| A160749 | a(n) = (11*n^2 + 19*n + 10)/2 | polynomial | 100.0 % |
| A160805 | a(n) = (2*n^3 + 9*n^2 + n + 24) / 6 | polynomial | 100.0 % |
| A160950 | Primes p such that 2p + 105 is prime | primes | 33.0 % |
| A160951 | Primes p such that 2p + 1155 is prime | primes | 31.6 % |
| A161008 | Primes of the form 2*k^2 + 5939831 | primes | 99.9 % |
| A161504 | Primes congruent to {1, 2, 10, 11, 19, 20} mod 21 | primes | 27.9 % |
| A161505 | Primes congruent to {1, 7, 8, 25, 26, 32} mod 33 | primes | 32.6 % |
| A161532 | a(n) = 2*n^2 + 8*n + 1 | polynomial | 100.0 % |
| A161549 | a(n) = 2*n^2 + 14*n + 1 | polynomial | 100.0 % |
| A161587 | a(n) = 13*n^2 + 10*n + 1 | polynomial | 100.0 % |
| A161613 | Primes p such that 2p+3*5*7*11*13*17*19*23*29*31*37 is prime | primes | 34.2 % |
| A161616 | Primes p such that 2*p+111546435 is also prime | primes | 31.6 % |
| A161617 | a(n) = 8*n^2 + 20*n + 1 | polynomial | 100.0 % |
| A161703 | a(n) = (4*n^3 - 12*n^2 + 14*n + 3)/3 | polynomial | 100.0 % |
| A161707 | a(n) = (4*n^3 - 9*n^2 + 11*n + 3)/3 | polynomial | 100.0 % |
| A161712 | a(n) = (4*n^3 - 6*n^2 + 8*n + 3)/3 | polynomial | 100.0 % |
| A162147 | a(n) = n*(n+1)*(5*n + 4)/6 | polynomial | 100.0 % |
| A162148 | a(n) = n*(n+1)*(5*n+7)/6 | polynomial | 100.0 % |
| A162174 | Primes classified by level | primes | 51.6 % |
| A162175 | Primes classified by weight | primes | 7.5 % |
| A162254 | a(n) = n*(2*n^2 + 5*n + 1)/2 | polynomial | 100.0 % |
| A162256 | a(n) = (2*n^3 + 5*n^2 - 3*n)/2 | polynomial | 100.0 % |
| A162260 | a(n) = (n^3 + 4*n^2 - n)/2 | polynomial | 100.0 % |
| A162261 | a(n) = (2*n^3 + 5*n^2 - 7*n)/2 | polynomial | 100.0 % |
| A162263 | a(n) = (2*n^3 + 5*n^2 + 11*n)/2 | polynomial | 100.0 % |
| A162264 | a(n) = (2*n^3 + 5*n^2 + 7*n)/2 | polynomial | 100.0 % |
| A162265 | a(n) = (2*n^3 + 5*n^2 - 5*n)/2 | polynomial | 100.0 % |
| A162266 | a(n) = (2*n^3 + 5*n^2 + 21*n)/2 | polynomial | 100.0 % |
| A162267 | a(n) = (2*n^3 + 5*n^2 + 5*n)/2 | polynomial | 100.0 % |
| A162316 | a(n) = 5*n^2 + 20*n + 1 | polynomial | 100.0 % |
| A162527 | Numbers k whose largest divisor <= sqrt(k) equals 7 | divisor functions | 23.1 % |
| A162540 | a(n) = (2*n+1)*(2*n+3)*(2*n+5)/3 | polynomial | 100.0 % |
| A162860 | Numbers k such that k^2+4*k+1 is prime | prime values | 23.8 % |
| A163303 | a(n) = n^3 + 73*n^2 + n + 67 | polynomial | 100.0 % |
| A163612 | Primes of form 5207*n + 1 | primes | 89.1 % |
| A163623 | Primes of the form 120*k + 1 | primes | 57.1 % |
| A163624 | Numbers k such that 120*k+1 is prime | prime values | 17.6 % |
| A163627 | Numbers k such that 42k + 5 is prime | prime values | 15.7 % |
| A163655 | a(n) = n*(2*n^2 + 5*n + 13)/2 | polynomial | 100.0 % |
| A163661 | a(n) = n*(2*n^2 + 5*n + 17)/2 | polynomial | 100.0 % |
| A163673 | a(n) = n*(2*n^2 + 5*n + 15)/2 | polynomial | 100.0 % |
| A163675 | a(n) = n*(2*n^2 + 5*n + 19)/2 | polynomial | 100.0 % |
| A163683 | a(n) = n^2*(2*n + 5) | polynomial | 100.0 % |
| A163758 | a(n) = 9*n*(n+1) | polynomial | 100.0 % |
| A163761 | a(n) = 10*n*(n+1) | polynomial | 100.0 % |
| A163815 | a(n) = n*(2*n^2 + 5*n + 3) | polynomial | 100.0 % |
| A163832 | a(n) = n*(2*n^2 + 5*n + 1) | polynomial | 100.0 % |
| A163833 | a(n) = n*(6*n^2 + 15*n + 5)/2 | polynomial | 100.0 % |
| A164042 | Primes p such that 2*p^2+4*p+1 is also prime | primes | 38.8 % |
| A164136 | a(n) = 11*n*(n+1) | polynomial | 100.0 % |
| A164845 | a(n) = (6 + 10*n + 5*n^2 + n^3)/2 | polynomial | 100.0 % |
| A164897 | a(n) = 4*n*(n+1) + 3 | polynomial | 100.0 % |
| A165682 | Primes p such that 3*p*(p-1)+1 is also prime | primes | 41.1 % |
| A165798 | a(n) = 65*n^2 | polynomial | 100.0 % |
| A165806 | a(n) = 15n^2 + 3n + 1 | polynomial | 100.0 % |
| A165810 | Primes p such that 18*p+1 is also a prime | primes | 38.2 % |
| A166005 | Primes p such that 8*p+15 is also a prime | primes | 35.1 % |
| A166136 | a(n) = n*(n+3)/2 + 7 | polynomial | 100.0 % |
| A166137 | a(n) = 5*n*(n+1)/2 - 4 | polynomial | 100.0 % |
| A166143 | a(n) = 3*n^2 + 3*n - 5 | polynomial | 100.0 % |
| A166144 | a(n) = (11*n^2 + 11*n - 20)/2 | polynomial | 100.0 % |
| A166146 | a(n) = (7*n^2 + 7*n - 12)/2 | polynomial | 100.0 % |
| A166147 | a(n) = 4*n^2 + 4*n - 7 | polynomial | 100.0 % |
| A166148 | a(n) = (9*n^2 + 9*n - 16)/2 | polynomial | 100.0 % |
| A166150 | a(n) = 5*n^2 + 5*n - 9 | polynomial | 100.0 % |
| A166151 | a(n) = (5*n^2 + 5*n - 6)/2 | polynomial | 100.0 % |
| A166154 | a(n) = 7*n*(n+1)/2 - 5 | polynomial | 100.0 % |
| A166457 | Numbers n such that n*100+1 is prime | prime values | 22.1 % |
| A166464 | a(n) = (3 + 2*n + 6*n^2 + 4*n^3)/3 | polynomial | 100.0 % |
| A166547 | Primes of the form 100*k+7 | primes | 52.8 % |
| A166560 | Primes of the form 100*n+9 | primes | 53.2 % |
| A166573 | Prime numbers containing the string 13 | primes | 29.7 % |
| A166911 | a(n) = (9 + 14*n + 12*n^2 + 4*n^3)/3 | polynomial | 100.0 % |
| A167055 | Numbers k such that 12*k + 5 is prime | prime values | 16.5 % |
| A167056 | Numbers k such that 12*k + 7 is prime | prime values | 17.4 % |
| A167057 | Numbers k such that 12*k + 11 is prime | prime values | 18.3 % |
| A167119 | Primes congruent to 2, 3, 5, 7 or 11 (mod 13) | primes | 31.5 % |
| A167134 | Primes congruent to {2, 3, 5, 7} mod 11 | primes | 30.7 % |
| A167135 | Primes congruent to {2, 3, 5, 7, 11} mod 12 | primes | 26.2 % |
| A167469 | a(n) = 3*n*(5*n-1)/2 | polynomial | 100.0 % |
| A167487 | a(n) = n*(n + 3)/2 + 8 | polynomial | 100.0 % |
| A167499 | a(n) = n*(n+3)/2 + 6 | polynomial | 100.0 % |
| A167573 | a(n) = 20*n^2 + 3 | polynomial | 100.0 % |
| A167585 | a(n) = 12*n^2 - 8*n + 9 | polynomial | 100.0 % |
| A168235 | a(n) = 1+5*n+7*n^2 | polynomial | 100.0 % |
| A168240 | a(n) = 13*n^2 + 7*n + 1 | polynomial | 100.0 % |
| A168484 | Numbers that are congruent to {2, 3, 5, 7} mod 11 | residue class | 16.0 % |
| A168486 | Numbers that are congruent to {2, 5} mod 11 | residue class | 21.9 % |
| A168489 | Numbers that are congruent to {7,11} mod 12 | residue class | 18.0 % |
| A168501 | Numbers without the decimal digits 2, 4 and 6 | digit rule | 16.1 % |
| A168547 | a(n) = 1 - 2*n^2 + 4*n*(1 + 2*n^2)/3 | polynomial | 100.0 % |
| A168574 | a(n) = (4*n + 3)*(1 + 2*n^2)/3 | polynomial | 100.0 % |
| A168668 | a(n) = n*(2 + 5*n) | polynomial | 100.0 % |
| A168670 | Numbers that are congruent to {1, 8} mod 11 | residue class | 22.4 % |
| A168671 | Numbers that are congruent to {1, 10} mod 13 | residue class | 23.1 % |
| A168672 | Numbers that are congruent to {2,13} mod 17 | residue class | 24.9 % |
| A169597 | Numbers that are congruent to {2, 15} mod 19 | residue class | 25.4 % |
| A169598 | Numbers that are congruent to {3,18} mod 23 | residue class | 26.7 % |
| A169599 | Numbers that are congruent to {4, 23} mod 29 | residue class | 28.1 % |
| A169600 | Numbers that are congruent to {4, 25} mod 31 | residue class | 28.3 % |
| A169610 | Numbers that are congruent to {5, 30} mod 37 | residue class | 29.5 % |
| A169823 | Multiples of 60 | residue class | 9.7 % |
| A171139 | Primes p such that 7*p^2+7*p-1 is also prime | primes | 39.7 % |
| A171141 | Numbers that are congruent to {6,33} mod 41 | residue class | 30.2 % |
| A171272 | a(n) = 1 + 4*n*(1 + 2*n^2)/3 | polynomial | 100.0 % |
| A171409 | Primes p such that 9014*p+1 is also prime | primes | 50.0 % |
| A171517 | Primes p such that 2*p+11 is prime | primes | 46.7 % |
| A171748 | Primes of the form (2+n)*(1+2*n)+(1+n)*(2+2*n) | primes | 100.0 % |
| A171838 | Primes of the form 3*k^2 + 9*k + 5 | primes | 100.0 % |
| A172043 | a(n) = 5*n^2 - n + 1 | polynomial | 100.0 % |
| A172044 | a(n) = 5*n^2 + 11*n + 1 | polynomial | 100.0 % |
| A172073 | a(n) = (4*n^3 + n^2 - 3*n)/2 | polynomial | 100.0 % |
| A172076 | a(n) = n*(n+1)*(14*n-11)/6 | polynomial | 100.0 % |
| A172078 | a(n) = n*(16*n^2 + 3*n - 13)/6 | polynomial | 100.0 % |
| A172082 | a(n) = n*(n+1)*(6*n-5)/2 | polynomial | 100.0 % |
| A172117 | a(n) = n*(n+1)*(20*n-17)/6 | polynomial | 100.0 % |
| A172122 | Primes p such that 7*p^2+7*p+1 is also prime | primes | 52.0 % |
| A172193 | a(n) = 5*n^2 + 31*n + 1 | polynomial | 100.0 % |
| A172443 | Numbers with exactly 64 divisors | multiplicative | 27.1 % |
| A172469 | Primes congruent to +/-1 or +/-7 modulo 25 | primes | 35.5 % |
| A172482 | a(n) = (1+n)*(9 + 11*n + 4*n^2)/3 | polynomial | 100.0 % |
| A172981 | Primes p such that 210*p+41 is also prime | primes | 34.8 % |
| A173089 | a(n) = 25*n^2 + n | polynomial | 100.0 % |
| A173141 | a(n) = 49*n^2 + n | polynomial | 100.0 % |
| A173267 | a(n) = 121*n^2 + n | polynomial | 100.0 % |
| A173274 | Primes of the form x^2 + 18480*y^2 | quadratic form | 68.5 % |
| A173275 | a(n) = 169*n^2 + n | polynomial | 100.0 % |
| A173307 | a(n) = 13*n*(n+1) | polynomial | 100.0 % |
| A173308 | a(n) = 17*n*(n+1) | polynomial | 100.0 % |
| A173309 | a(n) = 19*n*(n+1) | polynomial | 100.0 % |
| A173552 | Numbers k such that 5+38*k^2 is a prime | prime values | 16.4 % |
| A173554 | Primes of form 5+38*n^2 | primes | 100.0 % |
| A173555 | Primes p such that 5+38*p^2 is also prime | primes | 35.0 % |
| A173580 | Primes where each digit is 0, 1, 2, 4, or 8 | primes | 40.4 % |
| A173626 | Primes p such that p-1 has no prime factors larger than sqrt(p) | primes | 31.4 % |
| A174138 | Numbers congruent to {5,6,7,8,9,15,16,17,18,19} mod 25 | residue class | 12.5 % |
| A174139 | Numbers congruent to {0,1,2,3,4,10,11,12,13,14,20,21,22,23,24} mod 25 | residue class | 11.3 % |
| A174152 | Primes p such that p^2+p+9 is also prime | primes | 52.7 % |
| A174281 | Primes p such that 20*p^2+32*p+13 is also prime | primes | 39.5 % |
| A174333 | a(n) = 61*n^2 | polynomial | 100.0 % |
| A174334 | a(n) = 73*n^2 | polynomial | 100.0 % |
| A174337 | a(n) = 94*n^2 | polynomial | 100.0 % |
| A174338 | a(n) = 97*n^2 | polynomial | 100.0 % |
| A174339 | a(n) = 109*n^2 | polynomial | 100.0 % |
| A174396 | Numbers congruent to {1,4,5,8} mod 9 | residue class | 10.2 % |
| A174398 | Numbers that are congruent to {1, 4, 5, 8} mod 12 | residue class | 18.6 % |
| A174438 | Numbers that are congruent to {0, 2, 5, 8} mod 9 | residue class | 18.6 % |
| A174635 | Prime numbers that are not Ramanujan primes | primes | 28.4 % |
| A174723 | a(n) = n*(4*n^2 - 3*n + 5)/6 | polynomial | 100.0 % |
| A174812 | Primes of the form n^2+42 | primes | 100.0 % |
| A174813 | a(n) = number whose product of digits equals a power of 3 | digit rule | 20.4 % |
| A174814 | a(n) = n*(n+1)*(5*n+1)/3 | polynomial | 100.0 % |
| A174905 | Numbers with no pair (d,e) of divisors such that d < e < 2*d | divisor functions | 8.6 % |
| A174913 | Lesser of twin primes p1 and p2 such that 2*p1+p2 is a prime number | primes | 64.1 % |
| A175063 | Primes p such that 5*p^2 + 5*p + 1 is also prime | primes | 38.0 % |
| A175461 | Semiprimes of form 8n+5 | multiplicative | 30.9 % |
| A175463 | Numbers k such that 8*k + 5 is semiprime | multiplicative | 15.9 % |
| A175495 | Positive integers k such that k < 2^d(k), where d(k) is the number of divisors of k | divisor functions | 16.6 % |
| A175648 | Semiprimes m such that m+4 is also semiprime | multiplicative | 26.8 % |
| A175742 | Numbers with 32 divisors | multiplicative | 23.8 % |
| A175746 | Numbers with 36 divisors | multiplicative | 27.9 % |
| A175749 | Numbers with 40 divisors | multiplicative | 27.9 % |
| A175750 | Numbers with 42 divisors | multiplicative | 40.9 % |
| A175754 | Numbers with 48 divisors | multiplicative | 22.5 % |
| A175884 | Numbers that are congruent to {0, 2, 4, 7, 9} mod 12 | residue class | 16.2 % |
| A175885 | Numbers that are congruent to {1, 10} mod 11 | residue class | 20.8 % |
| A175886 | Numbers that are congruent to {1, 12} mod 13 | residue class | 21.3 % |
| A175887 | Numbers that are congruent to {1, 14} mod 15 | residue class | 12.1 % |
| A176547 | Numbers n such that 2*n^2 + 6*n + 1 is prime | prime values | 19.1 % |
| A176549 | Primes of the form 2*n^2+6*n+1 | primes | 100.0 % |
| A176617 | Primes of the form 14*k^2 + 26*k + 13 | primes | 100.0 % |
| A176783 | Primes of the form 13*n^2+3*n+1 | primes | 100.0 % |
| A176969 | Numbers n such that n^2 + 13^2 is prime | prime values | 23.2 % |
| A176995 | Numbers that can be written as (m + sum of digits of m) for some m | digit rule | 10.0 % |
| A177059 | a(n) = 25*n^2 + 25*n + 6 | polynomial | 100.0 % |
| A177065 | a(n) = (8*n+3)*(8*n+5) | polynomial | 100.0 % |
| A177071 | a(n) = (7*n + 3)*(7*n + 4) | polynomial | 100.0 % |
| A177072 | a(n) = (9*n+2)*(9*n+7) | polynomial | 100.0 % |
| A177073 | a(n) = (9*n+4)*(9*n+5) | polynomial | 100.0 % |
| A177092 | Primes p such that 11*p + 2 is also prime | primes | 47.5 % |
| A177099 | a(n) = 81*n^2 + 2*n | polynomial | 100.0 % |
| A177342 | a(n) = (4*n^3-3*n^2+5*n-3)/3 | polynomial | 100.0 % |
| A178361 | Numbers with rounded up arithmetic mean of digits = 1 | digit rule | 13.8 % |
| A178403 | Numbers containing the rounded up arithmetic mean of their digits at least once, cf. A004427 | digit rule | 11.7 % |
| A178574 | a(n) = 2*n*(9*n-1) | polynomial | 100.0 % |
| A178977 | a(n) = (3*n+2)*(3*n+5)/2 | polynomial | 100.0 % |
| A179188 | Numbers n such that phi(n) = phi(n+6), with Euler's totient function phi=A000010 | divisor functions | 38.0 % |
| A179231 | Primes of the form 250n + 1 | primes | 59.4 % |
| A179244 | Numbers that have 4 terms in their Zeckendorf representation | digit rule | 27.9 % |
| A179336 | Primes containing at least one prime digit in base 10 | primes | 23.3 % |
| A179436 | a(n) = (3*n+7)*(3*n+2)/2 | polynomial | 100.0 % |
| A180223 | a(n) = (11*n^2 - 7*n)/2 | polynomial | 100.0 % |
| A180232 | a(n) = n*(17*n - 13)/2 | polynomial | 100.0 % |
| A180415 | a(n) = (n^3 - 3n^2 + 14n - 6)/6 | polynomial | 100.0 % |
| A180748 | Numbers k such that k^2 - k + 1 is semiprime | multiplicative | 16.7 % |
| A180919 | a(n) = n^2 + 731*n + 1 | polynomial | 100.0 % |
| A180923 | Numbers n such that 111*n + 1 is prime | prime values | 19.4 % |
| A180939 | Numbers n such that n^2 - 2999n + 2248541 is prime | prime values | 15.7 % |
| A180948 | Smallest of seven (7) consecutive primes whose sum is a prime | primes | 38.4 % |
| A180950 | Smallest prime such that the sum of successive 11 primes is a prime | primes | 38.7 % |
| A181679 | a(n) = 121*n^2 + 2*n | polynomial | 100.0 % |
| A181732 | Numbers n such that 90n + 1 is prime | prime values | 17.5 % |
| A181780 | Numbers n which are Fermat pseudoprimes to some base b, 2 <= b <= n-2 | primes | 10.5 % |
| A181890 | a(n) = 8*n^2 + 14*n + 5 | polynomial | 100.0 % |
| A182175 | Numbers with the property that every pair of adjacent digits sum to a prime number | digit rule | 14.5 % |
| A182760 | Beatty sequence for (3 + 5^(-1/2))/2 | Beatty | 12.6 % |
| A184618 | a(n) = floor(n*r + h), where r=sqrt(2) and h=1/3; complement of A184619 | Beatty | 11.3 % |
| A184774 | Primes of the form floor(k*sqrt(2)) | Beatty | 25.8 % |
| A185019 | a(n) = n*(14*n-3) | polynomial | 100.0 % |
| A185022 | Prime p such that p, p+12, p+24 are all primes | primes | 48.8 % |
| A185086 | Fouvry-Iwaniec primes: Primes of the form k^2 + p^2 where p is a prime | primes | 37.7 % |
| A185212 | a(n) = 12*n^2 - 8*n + 1 | polynomial | 100.0 % |
| A185438 | a(n) = 8*n^2 - 2*n + 1 | polynomial | 100.0 % |
| A185669 | a(n) = 4*n^2 + 3*n + 2 | polynomial | 100.0 % |
| A185939 | a(n) = 9*n^2 - 6*n + 2 | polynomial | 100.0 % |
| A186029 | a(n) = n*(7*n+3)/2 | polynomial | 100.0 % |
| A186030 | a(n) = n*(13*n-3)/2 | polynomial | 100.0 % |
| A186525 | Semiprimes of the form 7k+1 | multiplicative | 32.4 % |
| A186815 | Numbers n such that n^2-10 is a prime | prime values | 28.0 % |
| A187710 | a(n) = n^2 + n + 10 | polynomial | 100.0 % |
| A188135 | a(n) = 8*n^2 + 2*n + 1 | polynomial | 100.0 % |
| A188377 | a(n) = n^3 - 4*n^2 + 6*n - 2 | polynomial | 100.0 % |
| A188382 | Primes of the form 8*n^2 + 2*n + 1 | primes | 100.0 % |
| A188459 | Numbers k such that 4*k^2 + 4*k + 653 is a prime | prime values | 16.0 % |
| A188475 | a(n) = (2*n^3 + 3*n^2 + n + 3)/3 | polynomial | 100.0 % |
| A188549 | Numbers k such that 8*k^2+1 is a prime | prime values | 19.7 % |
| A188947 | a(n) = n^3 - 2*n^2 + 2*n + 1 | polynomial | 100.0 % |
| A189833 | a(n) = n^2 + 8 | polynomial | 100.0 % |
| A189834 | a(n) = n^2 + 9 | polynomial | 100.0 % |
| A189836 | a(n) = n^2 + 11 | polynomial | 100.0 % |
| A189890 | a(n) = (n^3 - 2*n^2 + 3*n + 2)/2 | polynomial | 100.0 % |
| A190576 | a(n) = n^2 + 5*n - 5 | polynomial | 100.0 % |
| A190719 | Numbers that are congruent to {0, 1, 3, 5, 7, 8, 11} mod 12 | residue class | 15.6 % |
| A190785 | Numbers that are congruent to {0, 2, 3, 5, 7, 9, 11} mod 12 | residue class | 19.8 % |
| A190803 | Increasing sequence generated by these rules: a(1)=1, and if x is in a then 2x-1 and 3x-1 are in a | self-referential | 26.3 % |
| A190898 | Least odd prime p>n^2 with (n/p) = 1, where ( / ) is the Legendre symbol | primes | 100.0 % |
| A191021 | Primes that are squares mod 23 | primes | 27.1 % |
| A191022 | Primes that are squares mod 29 | primes | 29.3 % |
| A191024 | Primes that are squares mod 31 | primes | 27.8 % |
| A191027 | Primes that are nonzero squares mod 37 | primes | 29.0 % |
| A191060 | Primes that are not squares mod 11 | primes | 30.5 % |
| A191063 | Primes that are not squares mod 19 | primes | 29.7 % |
| A191065 | Primes that are not squares mod 23 | primes | 28.1 % |
| A191067 | Primes that are not squares mod 31 | primes | 27.7 % |
| A191073 | Primes that are not squares mod 51 | primes | 28.3 % |
| A191113 | Increasing sequence generated by these rules: a(1)=1, and if x is in a then 3x-2 and 4x-2 are in a | self-referential | 21.9 % |
| A191275 | Numbers that are congruent to {0, 1, 3, 5, 7, 9, 11} mod 12 | residue class | 19.5 % |
| A191413 | a(n) = 3*n^2 - 2*n + 7 | polynomial | 100.0 % |
| A192607 | Nonludic numbers: complement of A003309 | sieve | 10.4 % |
| A193448 | a(n) = 4*(5*n^2 - 5*n + 1) | polynomial | 100.0 % |
| A194431 | a(n) = 8*n^2 - 6*n - 1 | polynomial | 100.0 % |
| A194454 | a(n) = 12*n^2 + 2*n + 1 | polynomial | 100.0 % |
| A195018 | a(n) = n*(10*n-3) | polynomial | 100.0 % |
| A195021 | a(n) = n*(14*n - 11) | polynomial | 100.0 % |
| A195023 | a(n) = 14*n^2 - 4*n | polynomial | 100.0 % |
| A195024 | a(n) = n*(14*n - 1) | polynomial | 100.0 % |
| A195025 | a(n) = n*(14*n + 3) | polynomial | 100.0 % |
| A195026 | a(n) = 7*n*(2*n + 1) | polynomial | 100.0 % |
| A195027 | a(n) = 2*n*(7*n + 5) | polynomial | 100.0 % |
| A195028 | a(n) = n*(14*n + 13) | polynomial | 100.0 % |
| A195029 | a(n) = n*(14*n + 13) + 3 | polynomial | 100.0 % |
| A195086 | Numbers k such that (number of prime factors of k counted with multiplicity) less (number of distinct prime factors of k) = 2 | multiplicative | 18.7 % |
| A195087 | Numbers k such that (number of prime factors of k counted with multiplicity) less (number of distinct prime factors of k) = 3 | multiplicative | 19.4 % |
| A195088 | Numbers k such that (number of prime factors of k counted with multiplicity) less (number of distinct prime factors of k) = 4 | multiplicative | 19.9 % |
| A195089 | Numbers k such that (number of prime factors of k counted with multiplicity) less (number of distinct prime factors of k) = 5 | multiplicative | 20.5 % |
| A195090 | Numbers k such that (number of prime factors of k counted with multiplicity) less (number of distinct prime factors of k) = 6 | multiplicative | 20.7 % |
| A195091 | Numbers k such that (number of prime factors of k counted with multiplicity) less (number of distinct prime factors of k) = 7 | multiplicative | 21.2 % |
| A195092 | Numbers k such that (number of prime factors of k counted with multiplicity) less (number of distinct prime factors of k) = 8 | multiplicative | 21.8 % |
| A195093 | Numbers k such that (number of prime factors of k counted with multiplicity) less (number of distinct prime factors of k) = 9 | multiplicative | 22.8 % |
| A195131 | Numbers k such that 666k-1 is prime | prime values | 19.6 % |
| A195270 | 3-gap primes: Prime p is a term iff there is no prime between 3*p and 3*q, where q is the next prime after p | primes | 34.5 % |
| A195321 | a(n) = 18*n^2 | polynomial | 100.0 % |
| A195322 | a(n) = 20*n^2 | polynomial | 100.0 % |
| A195323 | a(n) = 22*n^2 | polynomial | 100.0 % |
| A195819 | Multiples of 29 | residue class | 9.7 % |
| A195824 | a(n) = 24*n^2 | polynomial | 100.0 % |
| A195905 | Primes of the form 10 * k^2 + 7 | primes | 100.0 % |
| A195943 | Zeroless prime powers: Intersection of A000961 and A052382 | powers | 23.6 % |
| A195993 | Numbers n such that 90n + 73 is prime | prime values | 17.2 % |
| A196000 | Numbers k such that 90*k + 19 is prime | prime values | 16.7 % |
| A196007 | Numbers n such that 90n + 83 is prime | prime values | 16.8 % |
| A196507 | a(n) = n*(3*n^2 + 6*n + 1) | polynomial | 100.0 % |
| A198017 | a(n) = n*(7*n + 11)/2 + 1 | polynomial | 100.0 % |
| A198273 | Primes not of the form p*q + p + q for any primes p and q | primes | 25.7 % |
| A198382 | Numbers n such that 90n + 37 is prime | prime values | 16.9 % |
| A198772 | Numbers having exactly one representation by the quadratic form x^2 + xy + y^2 with 0 <= x <= y | quadratic form | 27.1 % |
| A198773 | Numbers having exactly two representations by the quadratic form x^2+xy+y^2 with 0<=x<=y | quadratic form | 30.4 % |
| A199325 | Primes having only {0, 1, 5} as digits | primes | 39.7 % |
| A199326 | Primes having only {0, 1, 6} as digits | primes | 40.2 % |
| A199327 | Primes having only {0, 1, 7} as digits | primes | 33.1 % |
| A199329 | Primes having only {0, 1, 9} as digits | primes | 33.2 % |
| A199340 | Primes having only {0, 3, 4} as digits | primes | 38.2 % |
| A199341 | Primes having only {1, 3, 4} as digits | primes | 30.8 % |
| A199342 | Primes having only {2, 3, 4} as digits | primes | 36.9 % |
| A199345 | Primes having only {3, 4, 5} as digits | primes | 36.7 % |
| A199346 | Primes having only {3, 4, 6} as digits | primes | 38.2 % |
| A199347 | Primes having only {3, 4, 7} as digits | primes | 33.8 % |
| A199348 | Primes having only {3, 4, 8} as digits | primes | 39.6 % |
| A199349 | Primes having only {3, 4, 9} as digits | primes | 32.4 % |
| A200995 | Numbers not expressible as a product of Lucas numbers | complement | 9.4 % |
| A201279 | a(n) = 6*n^2 + 10*n + 5 | polynomial | 100.0 % |
| A201313 | Primes of the form n^2 - 10 | primes | 100.0 % |
| A201314 | Primes of the form n^2 - 17 | primes | 100.0 % |
| A201473 | Primes of the form 2*k^2 + 3 | primes | 100.0 % |
| A201474 | Primes of the form 2n^2 + 5 | primes | 100.0 % |
| A201475 | Primes of the form 2n^2 + 7 | primes | 100.0 % |
| A201476 | Primes of the form 2*k^2 + 9 | primes | 100.0 % |
| A201477 | Primes of the form 3n^2 + 4 | primes | 100.0 % |
| A201478 | Primes of the form 3n^2 + 5 | primes | 100.0 % |
| A201479 | Primes of the form 3n^2 + 7 | primes | 100.0 % |
| A201480 | Primes of the form 3n^2 + 10 | primes | 100.0 % |
| A201482 | Primes of the form 5n^2 + 3 | primes | 100.0 % |
| A201484 | Primes of the form 5n^2 + 6 | primes | 100.0 % |
| A201486 | Primes of the form 5n^2 + 8 | primes | 100.0 % |
| A201487 | Primes of the form 5n^2 + 9 | primes | 100.0 % |
| A201600 | Primes of the form 6n^2 + 5 | primes | 100.0 % |
| A201601 | Primes of the form 6n^2 + 7 | primes | 100.0 % |
| A201602 | Primes of the form 7n^2 + 1 | primes | 100.0 % |
| A201605 | Primes of the form 7n^2 + 4 | primes | 100.0 % |
| A201607 | Primes of the form 7n^2 + 6 | primes | 100.0 % |
| A201609 | Primes of the form 7n^2 + 9 | primes | 100.0 % |
| A201610 | Primes of the form 7n^2 + 10 | primes | 100.0 % |
| A201611 | Primes of the form 8n^2 + 3 | primes | 100.0 % |
| A201612 | Primes of the form 8n^2 + 5 | primes | 100.0 % |
| A201705 | Primes of the form 8n^2 + 9 | primes | 100.0 % |
| A201706 | Primes of the form 9n^2 + 4 | primes | 100.0 % |
| A201707 | Primes of the form 9n^2 + 7 | primes | 100.0 % |
| A201708 | Primes of the form 9n^2 + 10 | primes | 100.0 % |
| A201709 | Primes of the form 10n^2 + 1 | primes | 100.0 % |
| A201710 | Primes of the form 10n^2 + 3 | primes | 100.0 % |
| A201711 | Primes of the form 10n^2 + 9 | primes | 100.0 % |
| A201712 | Primes of the form 2n^2 - 3 | primes | 100.0 % |
| A201713 | Primes of the form 2n^2 - 5 | primes | 100.0 % |
| A201714 | Primes of the form 2n^2 - 7 | primes | 100.0 % |
| A201715 | Primes of the form 3*m^2 - 2 | primes | 100.0 % |
| A201716 | Primes of the form 3*m^2 - 4 | primes | 100.0 % |
| A201717 | Primes of the form 3*m^2 - 5 | primes | 100.0 % |
| A201718 | Primes of the form 3*m^2 - 7 | primes | 100.0 % |
| A201734 | Numbers n such that 90*n + 47 is prime | prime values | 16.8 % |
| A201739 | Numbers n such that 90*n + 29 is prime | prime values | 18.2 % |
| A201781 | Primes of the form 3*m^2 - 8 | primes | 100.0 % |
| A201782 | Primes of the form 3n^2 - 10 | primes | 100.0 % |
| A201783 | Primes of the form 5n^2 - 1 | primes | 100.0 % |
| A201784 | Primes of the form 5n^2 - 2 | primes | 100.0 % |
| A201785 | Primes of the form 5n^2 - 3 | primes | 100.0 % |
| A201786 | Primes of the form 5*k^2 - 4 | primes | 100.0 % |
| A201787 | Primes of the form 5n^2 - 6 | primes | 100.0 % |
| A201788 | Primes of the form 5n^2 - 7 | primes | 100.0 % |
| A201789 | Primes of the form 5n^2 - 8 | primes | 100.0 % |
| A201790 | Primes of the form 5n^2 - 9 | primes | 100.0 % |
| A201791 | Primes of the form 6*k^2 - 5 | primes | 100.0 % |
| A201792 | Primes of the form 6n^2 - 7 | primes | 100.0 % |
| A201793 | Primes of the form 7n^2 - 1 | primes | 100.0 % |
| A201804 | Numbers k such that 90*k + 11 is prime | prime values | 17.2 % |
| A201816 | Numbers k such that 90*k + 13 is prime | prime values | 16.6 % |
| A201817 | Numbers k such that 90*k + 67 is prime | prime values | 17.6 % |
| A201818 | Numbers k such that 90*k + 49 is prime | prime values | 16.6 % |
| A201819 | Numbers n such that 90*n + 31 is prime | prime values | 17.7 % |
| A201820 | Numbers k such that 90*k + 23 is prime | prime values | 17.3 % |
| A201822 | Numbers k such that 90*k + 77 is prime | prime values | 16.2 % |
| A201848 | Primes of the form 7n^2 - 2 | primes | 100.0 % |
| A201849 | Primes of the form 7n^2 - 3 | primes | 100.0 % |
| A201850 | Primes of the form 7n^2 - 4 | primes | 100.0 % |
| A201851 | Primes of the form 7n^2 - 5 | primes | 100.0 % |
| A201852 | Primes of the form 7n^2 - 6 | primes | 100.0 % |
| A201853 | Primes of the form 7n^2 - 8 | primes | 100.0 % |
| A201854 | Primes of the form 7n^2 - 9 | primes | 100.0 % |
| A201856 | Primes of the form 8n^2 - 3 | primes | 100.0 % |
| A201857 | Primes of the form 8n^2 - 5 | primes | 100.0 % |
| A201858 | Primes of the form 8n^2 - 7 | primes | 100.0 % |
| A201859 | Primes of the form 8n^2 - 9 | primes | 100.0 % |
| A201860 | Primes of the form 9n^2 - 2 | primes | 100.0 % |
| A201960 | Primes of the form 9n^2 - 5 | primes | 100.0 % |
| A201961 | Primes of the form 9n^2 - 8 | primes | 100.0 % |
| A201962 | Primes of the form 10n^2 - 3 | primes | 100.0 % |
| A201964 | Primes of the form 10n^2 - 9 | primes | 100.0 % |
| A202083 | Primes of the form 16n^2 + 121 | primes | 100.0 % |
| A202101 | Numbers k such that 90*k + 59 is prime | prime values | 16.7 % |
| A202104 | Numbers k such that 90*k + 41 is prime | prime values | 17.2 % |
| A202105 | Numbers k such that 90*k + 43 is prime | prime values | 17.9 % |
| A202110 | Numbers k such that 90*k + 7 is prime | prime values | 16.5 % |
| A202112 | Numbers k such that 90*k + 79 is prime | prime values | 17.5 % |
| A202113 | Numbers k such that 90*k + 61 is prime | prime values | 16.5 % |
| A202114 | Numbers k such that 90*k + 53 is prime | prime values | 17.7 % |
| A202115 | Numbers k such that 90*k + 17 is prime | prime values | 17.3 % |
| A202116 | Numbers k such that 90*k + 89 is prime | prime values | 16.7 % |
| A202129 | Numbers n such that 90n + 71 is prime | prime values | 17.5 % |
| A202267 | Numbers in which all digits are noncomposites (1, 2, 3, 5, 7) or 0 | digit rule | 15.7 % |
| A202268 | Numbers in which all digits are neither primes nor zero, i.e., are members of (1, 4, 6, 8, 9) | digit rule | 15.8 % |
| A202803 | a(n) = n*(5*n+1) | polynomial | 100.0 % |
| A202804 | a(n) = n*(6*n+4) | polynomial | 100.0 % |
| A202822 | Numbers of the form 3*(x^2 + xy + y^2 + x + y) + 1 where x and y are integers | quadratic form | 28.4 % |
| A203463 | Where Golay-Rudin-Shapiro sequence A020985 is positive | binary rule | 11.1 % |
| A203551 | a(n) = n*(5n^2 + 3n + 4) / 6 | polynomial | 100.0 % |
| A203552 | a(n) = n*(5*n^2 - 3*n + 4) / 6 | polynomial | 100.0 % |
| A204542 | Numbers that are congruent to {1, 4, 11, 14} mod 15 | residue class | 16.7 % |
| A204666 | Primes p such that q-p = 54, where q is the next prime after p | primes | 59.3 % |
| A204674 | a(n) = 4*n^3 + 5*n^2 + 2*n + 1 | polynomial | 100.0 % |
| A204675 | a(n) = 16*n^2 + 2*n + 1 | polynomial | 100.0 % |
| A208177 | Primes of the form 128*k + 1 | primes | 52.8 % |
| A208178 | Primes of the form 256*k + 1 | primes | 58.1 % |
| A208270 | Primes containing a digit 1 | primes | 24.8 % |
| A208272 | Primes containing a digit 2 | primes | 24.3 % |
| A209061 | Exponentially squarefree numbers | multiplicative | 9.7 % |
| A209294 | a(n) = (7*n^2 - 7*n + 4)/2 | polynomial | 100.0 % |
| A210440 | a(n) = 2*n*(n+1)*(n+2)/3 | polynomial | 100.0 % |
| A210479 | Primes p with p-1 and p+1 both practical: "Sandwich of the first kind" | primes | 54.5 % |
| A210527 | a(n) = 9*n^2 + 39*n + 83 | polynomial | 100.0 % |
| A212160 | Numbers that are congruent to {2, 10} mod 13 | residue class | 23.5 % |
| A212164 | Numbers k such that the maximum exponent in its prime factorization is greater than the number of positive exponents (A051903(k) > A001221(k)) | multiplicative | 13.9 % |
| A212165 | Numbers k such that the maximum exponent in its prime factorization is not less than the number of positive exponents (A051903(k) >= A001221(k)) | multiplicative | 14.8 % |
| A212166 | Numbers k such that the maximum exponent in its prime factorization equals the number of positive exponents (A051903(k) = A001221(k)) | multiplicative | 18.1 % |
| A212168 | Numbers n such that the maximal exponent in its prime factorization is less than the number of positive exponents (A051903(n) < A001221(n)) | multiplicative | 11.9 % |
| A212331 | a(n) = 5*n*(n+5)/2 | polynomial | 100.0 % |
| A212374 | Primes congruent to 1 mod 23 | primes | 46.2 % |
| A212492 | Prime p such that p, p+10, p+12 are all primes | primes | 59.0 % |
| A212525 | Primes containing a digit 3 | primes | 26.2 % |
| A212656 | a(n) = 5*n^2 + 1 | polynomial | 100.0 % |
| A212707 | Semiprimes of the form 5*n^2 + 1 | multiplicative | 100.0 % |
| A213382 | Numbers n such that n^n mod (n + 2) = n | powers | 41.4 % |
| A214423 | Numbers k palindromic in only one base b, 2 <= b <= 10 | digit rule | 42.4 % |
| A214584 | Integers whose decimal representation has only digits in {4,5,7} | digit rule | 11.0 % |
| A214588 | Primes p such that p mod 16 < 8 | primes | 28.3 % |
| A214659 | a(n) = n*(7*n^2 - 3*n - 1)/3 | polynomial | 100.0 % |
| A214660 | a(n) = 9*n^2 - 11*n + 3 | polynomial | 100.0 % |
| A214675 | a(n) = 9*n^2 - 13*n + 5 | polynomial | 100.0 % |
| A214703 | Primes having only {2, 3, 5} as digits | primes | 38.3 % |
| A214704 | Primes that contain only the digits (2, 3, 7) | primes | 34.6 % |
| A214705 | Primes that contain only the digits (2, 5, 7) | primes | 41.0 % |
| A214732 | a(n) = 25*n^2 + 15*n + 1021 | polynomial | 100.0 % |
| A214888 | Primes congruent to {2, 3} mod 11 | primes | 37.3 % |
| A214889 | Primes congruent to {2, 3} mod 13 | primes | 38.1 % |
| A214890 | Primes congruent to {2, 3} mod 17 | primes | 39.9 % |
| A215101 | Primes congruent to {2, 3} mod 19 | primes | 40.3 % |
| A215102 | Primes congruent to {2, 3, 5} mod 11 | primes | 34.0 % |
| A215103 | Primes congruent to {2, 3, 5} mod 13 | primes | 35.0 % |
| A215104 | Primes congruent to {2, 3, 5} mod 17 | primes | 36.5 % |
| A215105 | Primes congruent to {2, 3, 5} mod 19 | primes | 37.4 % |
| A215106 | Primes congruent to {3, 5, 6} mod 11 | primes | 31.8 % |
| A215131 | Primes congruent to {3, 5, 6} mod 13 | primes | 32.4 % |
| A215132 | Primes congruent to {3, 5, 6} mod 17 | primes | 34.2 % |
| A215133 | Primes congruent to {3, 5, 6} mod 19 | primes | 34.8 % |
| A215134 | Primes congruent to {1, 2, 3} mod 11 | primes | 32.5 % |
| A215135 | Primes congruent to {1, 2, 3} mod 13 | primes | 33.3 % |
| A215153 | Primes congruent to {1, 2, 3} mod 17 | primes | 34.6 % |
| A215154 | Primes congruent to {1, 2, 3} mod 19 | primes | 34.8 % |
| A215155 | Primes congruent to {2, 3, 5, 7} mod 13 | primes | 32.9 % |
| A215156 | Primes congruent to {2, 3, 5, 7} mod 17 | primes | 34.5 % |
| A215157 | Primes congruent to {2, 3, 5, 7} mod 19 | primes | 35.1 % |
| A215161 | Primes congruent to {2, 3, 5, 7, 11} mod 17 | primes | 31.9 % |
| A215162 | Primes congruent to {2, 3, 5, 7, 11} mod 19 | primes | 32.8 % |
| A215163 | Primes congruent to {1, 4} mod 11 | primes | 37.0 % |
| A215164 | Primes congruent to {1, 4} mod 13 | primes | 38.4 % |
| A215165 | Primes congruent to {1, 4} mod 17 | primes | 39.4 % |
| A215166 | Primes congruent to {1, 4} mod 19 | primes | 40.7 % |
| A215167 | Primes congruent to {2, 5} mod 11 | primes | 37.2 % |
| A215168 | Primes congruent to {2, 5} mod 13 | primes | 38.6 % |
| A215169 | Primes congruent to {2, 5} mod 17 | primes | 39.3 % |
| A215170 | Primes congruent to {2, 5} mod 19 | primes | 40.8 % |
| A215206 | Primes congruent to {2, 7} mod 11 | primes | 37.0 % |
| A215207 | Primes congruent to {2, 7} mod 13 | primes | 38.0 % |
| A215208 | Primes congruent to {2, 7} mod 17 | primes | 40.0 % |
| A215209 | Primes congruent to {2, 7} mod 19 | primes | 40.4 % |
| A215210 | Primes congruent to {2, 5, 7} mod 11 | primes | 33.7 % |
| A215211 | Primes congruent to {2, 5, 7} mod 13 | primes | 35.0 % |
| A215212 | Primes congruent to {2, 5, 7} mod 17 | primes | 36.7 % |
| A215213 | Primes congruent to {2, 5, 7} mod 19 | primes | 37.6 % |
| A215214 | Primes congruent to {0, 1, 2, 5} mod 11 | primes | 32.7 % |
| A215215 | Primes congruent to {0, 1, 2, 5} mod 13 | primes | 33.7 % |
| A215273 | Primes congruent to {0, 1, 2, 5} mod 17 | primes | 34.8 % |
| A215274 | Primes congruent to {0, 1, 2, 5} mod 19 | primes | 35.2 % |
| A215275 | Primes congruent to {2, 4, 5, 6} mod 11 | primes | 30.9 % |
| A215276 | Primes congruent to {2, 4, 5, 6} mod 13 | primes | 32.2 % |
| A215277 | Primes congruent to {2, 4, 5, 6} mod 17 | primes | 33.2 % |
| A215278 | Primes congruent to {2, 4, 5, 6} mod 19 | primes | 33.8 % |
| A215279 | Primes congruent to {2, 3, 4} mod 11 | primes | 32.5 % |
| A215280 | Primes congruent to {2, 3, 4} mod 13 | primes | 32.7 % |
| A215281 | Primes congruent to {2, 3, 4} mod 17 | primes | 35.1 % |
| A215282 | Primes congruent to {2, 3, 4} mod 19 | primes | 34.1 % |
| A215302 | Primes congruent to {1, 2, 3, 4} mod 11 | primes | 30.2 % |
| A215303 | Primes congruent to {1, 2, 3, 4} mod 13 | primes | 30.9 % |
| A215304 | Primes congruent to {1, 2, 3, 4} mod 17 | primes | 32.1 % |
| A215305 | Primes congruent to {1, 2, 3, 4} mod 19 | primes | 32.4 % |
| A215306 | Primes congruent to {1, 2, 3, 5} mod 11 | primes | 31.2 % |
| A215307 | Primes congruent to {1, 2, 3, 5} mod 13 | primes | 32.1 % |
| A215308 | Primes congruent to {1, 2, 3, 5} mod 17 | primes | 33.2 % |
| A215309 | Primes congruent to {1, 2, 3, 5} mod 19 | primes | 33.9 % |
| A215310 | Primes congruent to {1, 2, 3, 4, 5} mod 11 | primes | 29.3 % |
| A215311 | Primes congruent to {1, 2, 3, 4, 5} mod 13 | primes | 30.4 % |
| A215312 | Primes congruent to {1, 2, 3, 4, 5} mod 17 | primes | 31.2 % |
| A215313 | Primes congruent to {1, 2, 3, 4, 5} mod 19 | primes | 31.9 % |
| A215314 | Primes congruent to {2, 3, 4, 5} mod 11 | primes | 31.2 % |
| A215315 | Primes congruent to {2, 3, 4, 5} mod 13 | primes | 31.9 % |
| A215316 | Primes congruent to {2, 3, 4, 5} mod 17 | primes | 33.3 % |
| A215317 | Primes congruent to {2, 3, 4, 5} mod 19 | primes | 33.6 % |
| A215318 | Primes congruent to {1, 2, 3, 5, 6} mod 11 | primes | 27.4 % |
| A215319 | Primes congruent to {1, 2, 3, 5, 6} mod 13 | primes | 30.1 % |
| A215320 | Primes congruent to {1, 2, 3, 5, 6} mod 17 | primes | 31.2 % |
| A215321 | Primes congruent to {1, 2, 3, 5, 6} mod 19 | primes | 31.8 % |
| A215322 | Primes congruent to {1, 2, 3, 4, 6} mod 11 | primes | 26.3 % |
| A215323 | Primes congruent to {1, 2, 3, 4, 6} mod 13 | primes | 29.4 % |
| A215324 | Primes congruent to {1, 2, 3, 4, 6} mod 17 | primes | 30.3 % |
| A215325 | Primes congruent to {1, 2, 3, 4, 6} mod 19 | primes | 30.8 % |
| A215350 | Primes congruent to {2, 3, 4, 6} mod 11 | primes | 29.6 % |
| A215351 | Primes congruent to {2, 3, 4, 6} mod 13 | primes | 30.6 % |
| A215352 | Primes congruent to {2, 3, 4, 6} mod 17 | primes | 32.1 % |
| A215646 | a(n) = n * (11*n^2 + 6*n + 1) / 6 | polynomial | 100.0 % |
| A215927 | Primes having at least one digit that is not prime | primes | 23.1 % |
| A216838 | Odd primes for which 2 is not a primitive root | primes | 26.8 % |
| A216968 | Numbers k such that 2*k^2 + 3 is prime | prime values | 25.6 % |
| A216970 | Primes congruent to 1 mod 37 | primes | 49.3 % |
| A217039 | Primes having only {4, 5, 7} as digits | primes | 37.4 % |
| A217139 | Numbers n such that phi(n) = phi(n+12), with Euler's totient function phi = A000010 | divisor functions | 38.2 % |
| A217495 | Primes of the form 2*n^2 + 46*n + 21 | primes | 100.0 % |
| A217496 | Primes of the form 2*n^2 + 50*n + 23 | primes | 100.0 % |
| A217498 | Primes of the form 2*n^2 + 58*n + 27 | primes | 100.0 % |
| A217500 | Primes of the form 2*n^2 + 74*n + 35 | primes | 100.0 % |
| A217501 | Primes of the form 2*n^2 + 78*n + 37 | primes | 100.0 % |
| A217620 | Primes of the form 2*n^2 + 82*n + 39 | primes | 100.0 % |
| A217775 | a(n) = n*(n+1) + (n+2)*(n+3) + (n+4)*(n+5) | polynomial | 100.0 % |
| A217776 | a(n) = n*(n+1) + (n+2)*(n+3) + (n+4)*(n+5) + (n+6)*(n+7) | polynomial | 100.0 % |
| A217873 | a(n) = 4*n*(n^2 + 2)/3 | polynomial | 100.0 % |
| A218152 | a(n) = 1 + n + ((n-1)*n^2)/2 | polynomial | 100.0 % |
| A218155 | Numbers congruent to 2, 3, 6, 11 mod 12 | residue class | 14.5 % |
| A218471 | a(n) = n*(7*n-3)/2 | polynomial | 100.0 % |
| A219054 | a(n) = (8*n^3 + 3*n^2 + n) / 6 | polynomial | 100.0 % |
| A220081 | Primes of the form 15*k^2 - 15*k + 17 | primes | 100.0 % |
| A220083 | a(n) = (15*n^2 + 9*n + 2)/2 | polynomial | 100.0 % |
| A220084 | a(n) = (n + 1)*(20*n^2 + 19*n + 6)/6 | polynomial | 100.0 % |
| A222465 | a(n) = 4*n^2 + 3 | polynomial | 100.0 % |
| A224467 | Numbers n such that 27*n+1 is prime | prime values | 18.7 % |
| A224870 | Numbers m such that m^2 + (m+3)^2 is prime | prime values | 22.1 % |
| A224889 | Numbers n such that 90n + 91 is prime | prime values | 16.3 % |
| A225423 | Primes p such that p + 70000000 is also prime | primes | 44.4 % |
| A225550 | Primes p such that p^2 mod 37 is prime | primes | 35.5 % |
| A225856 | Primes p such that p^2 + 1 is squarefree | primes | 24.2 % |
| A226449 | a(n) = n*(5*n^2-8*n+5)/2 | polynomial | 100.0 % |
| A226450 | a(n) = n*(3*n^2 - 5*n + 3) | polynomial | 100.0 % |
| A226451 | a(n) = n*(7*n^2-12*n+7)/2 | polynomial | 100.0 % |
| A226488 | a(n) = n*(13*n - 9)/2 | polynomial | 100.0 % |
| A226489 | a(n) = n*(15*n-11)/2 | polynomial | 100.0 % |
| A226490 | a(n) = n*(19*n-15)/2 | polynomial | 100.0 % |
| A226491 | a(n) = n*(21*n-17)/2 | polynomial | 100.0 % |
| A226492 | a(n) = n*(11*n-5)/2 | polynomial | 100.0 % |
| A227144 | Numbers that are congruent to {1, 2, 7, 17, 23} modulo 24 | residue class | 14.9 % |
| A227146 | Numbers that are congruent to {5, 11, 13, 14, 19} modulo 24 | residue class | 14.9 % |
| A227776 | a(n) = 6*n^2 + 1 | polynomial | 100.0 % |
| A227793 | Numbers whose digital sum is a multiple of 5 | digit rule | 20.3 % |
| A227916 | Primes that remain prime when the leftmost digit is removed | primes | 38.5 % |
| A228121 | Numbers n such that 3n - 4 is prime | prime values | 26.7 % |
| A228137 | Numbers that are congruent to {1, 4} mod 12 | residue class | 30.2 % |
| A228141 | Numbers that are congruent to {1, 5} mod 20 | residue class | 31.8 % |
| A228184 | Numbers k such that k^2 + k + 41 is semiprime | multiplicative | 13.1 % |
| A228227 | Primes congruent to {7, 11} mod 16 | primes | 33.3 % |
| A228228 | Primes congruent to {3, 5, 13, 15} mod 16 | primes | 28.2 % |
| A229183 | a(n) = n*(n^2 + 3)/2 | polynomial | 100.0 % |
| A229854 | Primes of the form 384*k + 1 | primes | 64.3 % |
| A229856 | Primes of the form 384*k + 257 | primes | 64.0 % |
| A229947 | Primes congruent to {1, 11, 13, 17, 19, 29} mod 30 | primes | 25.3 % |
| A230018 | a(n) = (9*n^3 + 5*n)/2 | polynomial | 100.0 % |
| A230091 | Numbers of the form k + wt(k) for exactly two distinct k, where wt(k) = A000120(k) is the binary weight of k | binary rule | 17.6 % |
| A230092 | Numbers of the form k + wt(k) for exactly three distinct k, where wt(k) = A000120(k) is the binary weight of k | binary rule | 30.4 % |
| A230223 | Primes p such that 3*p-4, 3*p-10, and 3*p-14 are all prime | primes | 65.5 % |
| A230391 | Numbers m such that 232*m^2+1 is prime | prime values | 17.6 % |
| A230577 | Positive integers that have exactly 6 odd divisors | divisor functions | 24.9 % |
| A230633 | Numbers n such that m + (sum of digits in base-4 representation of m) = n has exactly one solution | digit rule | 11.7 % |
| A230634 | Numbers n such that m + (sum of digits in base-4 representation of m) = n has exactly two solutions | digit rule | 18.1 % |
| A230853 | Numbers n such that m + (sum of digits in base-3 representation of m) = n has exactly one solution | digit rule | 20.3 % |
| A230854 | Numbers n such that m + (sum of digits in base-3 representation of m) = n has exactly two solutions | digit rule | 11.3 % |
| A231607 | Primes p such that p + 600 is also prime | primes | 33.8 % |
| A232495 | a(n) = 9*n^3/2 - 21*n^2/2 + 8*n - 4 | polynomial | 100.0 % |
| A233010 | In balanced ternary notation, either a palindrome or becomes a palindrome if trailing 0's are omitted | digit rule | 68.9 % |
| A234095 | Primes p such that 2*p + 1 is semiprime | primes | 34.8 % |
| A234695 | Primes p with prime(p) - p + 1 also prime | primes | 38.7 % |
| A235592 | Numbers k such that k*(k+1) - prime(k) is prime | primes | 21.9 % |
| A236119 | Primes p with prime(p) - p - 1 and prime(p) - p + 1 both prime | primes | 57.0 % |
| A236267 | a(n) = 8*n^2 + 3*n + 1 | polynomial | 100.0 % |
| A236464 | Primes p with prime(p) + 2 and prime(p) + 6 both prime | primes | 60.6 % |
| A236562 | Numbers n such that A049820(x) = n has a solution | divisor functions | 11.9 % |
| A237616 | a(n) = n*(n + 1)*(5*n - 4)/2 | polynomial | 100.0 % |
| A237617 | a(n) = n*(n + 1)*(17*n - 14)/6 | polynomial | 100.0 % |
| A237618 | a(n) = n*(n + 1)*(19*n - 16)/6 | polynomial | 100.0 % |
| A237991 | a(n) = 991*n^2 + 1 | polynomial | 100.0 % |
| A238242 | Primes p such that p^2+p+41 is also prime | primes | 34.2 % |
| A239325 | a(n) = 6*n^2 + 8*n + 1 | polynomial | 100.0 % |
| A239449 | a(n) = 7*n^2 - 5*n + 1 | polynomial | 100.0 % |
| A241748 | a(n) = n^2 + 12 | polynomial | 100.0 % |
| A241749 | a(n) = n^2 + 13 | polynomial | 100.0 % |
| A241750 | a(n) = n^2 + 15 | polynomial | 100.0 % |
| A241751 | a(n) = n^2 + 16 | polynomial | 100.0 % |
| A241847 | a(n) = n^2 + 17 | polynomial | 100.0 % |
| A241848 | a(n) = n^2 + 18 | polynomial | 100.0 % |
| A241849 | a(n) = n^2 + 19 | polynomial | 100.0 % |
| A241850 | a(n) = n^2 + 20 | polynomial | 100.0 % |
| A241851 | a(n) = n^2 + 21 | polynomial | 100.0 % |
| A241889 | a(n) = n^2 + 23 | polynomial | 100.0 % |
| A241890 | a(n) = n^2 + 24 | polynomial | 100.0 % |
| A242260 | Primes p such that p^2-2 is semiprime | primes | 31.9 % |
| A242330 | Numbers k such that k^2 + 2 is a semiprime | multiplicative | 22.1 % |
| A242331 | Numbers k such that k^2 + 3 is a semiprime | multiplicative | 14.7 % |
| A242332 | Numbers k such that k^2 + 4 is a semiprime | multiplicative | 25.2 % |
| A242333 | Numbers k such that k^2 + 5 is a semiprime | multiplicative | 17.0 % |
| A242412 | a(n) = (2*n-1)^2 + 14 | polynomial | 100.0 % |
| A242476 | Primes p such that p + 22 is also prime | primes | 46.7 % |
| A242659 | a(n) = n*(n^2 - 3*n + 4) | polynomial | 100.0 % |
| A242708 | Primes p such that p^2 + p + 41 is semiprime | primes | 29.1 % |
| A243138 | a(n) = n^2 + 15*n + 13 | polynomial | 100.0 % |
| A243173 | Numbers of the form x^2+15y^2 | quadratic form | 30.3 % |
| A243367 | Primes p such that p^2 + 10 is prime | primes | 43.1 % |
| A243436 | Numbers n such that n^2-n-1 is semiprime | multiplicative | 14.2 % |
| A243450 | Primes of the form n^2 + 15 | primes | 100.0 % |
| A243451 | Primes of the form n^2 + 16 | primes | 100.0 % |
| A243520 | Numbers that are congruent to {0, 8} mod 11 | residue class | 21.8 % |
| A243544 | Primes p such that p^2 - p + 1 is semiprime | primes | 36.5 % |
| A243595 | Primes p such that 3 + 2*p^2 is also prime | primes | 48.7 % |
| A243762 | a(n) = 4*n^3 + 5 | polynomial | 100.0 % |
| A243937 | Even numbers n>=6 for which lpf(n-1) > lpf(n-3), where lpf = least prime factor | multiplicative | 15.1 % |
| A244037 | Numbers of the form x^2+14y^2 | quadratic form | 17.7 % |
| A244082 | a(n) = 32*n^2 | polynomial | 100.0 % |
| A244630 | a(n) = 17*n^2 | polynomial | 100.0 % |
| A244631 | a(n) = 19*n^2 | polynomial | 100.0 % |
| A244632 | a(n) = 23*n^2 | polynomial | 100.0 % |
| A244633 | a(n) = 26*n^2 | polynomial | 100.0 % |
| A244634 | a(n) = 27*n^2 | polynomial | 100.0 % |
| A244635 | a(n) = 29*n^2 | polynomial | 100.0 % |
| A244636 | a(n) = 30*n^2 | polynomial | 100.0 % |
| A244725 | a(n) = 5*n^3 | polynomial | 100.0 % |
| A244726 | a(n) = 6*n^3 | polynomial | 100.0 % |
| A244727 | a(n) = 7*n^3 | polynomial | 100.0 % |
| A244728 | a(n) = 9*n^3 | polynomial | 100.0 % |
| A245048 | Primes p such that p^2 + 28 is prime | primes | 37.3 % |
| A245301 | a(n) = n*(7*n^2 + 15*n + 8)/6 | polynomial | 100.0 % |
| A245590 | Primes p such that p^2 + 6 is a semiprime | primes | 36.8 % |
| A246172 | a(n) = (n^2 + 9*n - 8)/2 | polynomial | 100.0 % |
| A246281 | Numbers k for which A003961(k) < 2*k; Numbers n such that if n = product_{k >= 1} (p_k)^(c_k), then product_{k >= 1} (p_{k+1})^(c_k) < 2*n, where p_k indicates the k-th prime, A000040(k) | multiplicative | 9.2 % |
| A246282 | Numbers k for which A003961(k) > 2*k; numbers n such that if n = Product_{k >= 1} (p_k)^(c_k), then Product_{k >= 1} (p_{k+1})^(c_k) > 2*n, where p_k indicates the k-th prime, A000040(k) | multiplicative | 14.2 % |
| A246965 | Numbers n such that 19*n-(n+19) is a prime | prime values | 18.0 % |
| A247052 | Primes composed of only digits with line segments or both line segments and curves {1, 2, 4, 5, 7} | primes | 32.5 % |
| A247155 | a(n) = 31*n^2 + 1 | polynomial | 100.0 % |
| A247541 | a(n) = 7*n^2 + 1 | polynomial | 100.0 % |
| A247676 | Odd composite numbers congruent to 2 modulo 9 | residue class | 39.5 % |
| A247678 | Odd composite numbers congruent to 4 modulo 9 | residue class | 39.3 % |
| A247681 | Odd nonprimes congruent to 1 modulo 9 | residue class | 39.4 % |
| A247792 | a(n) = 9*n^2 + 1 | polynomial | 100.0 % |
| A247881 | Numbers of the form x^2 + 13*y^2 | quadratic form | 20.9 % |
| A248221 | Numbers m such that 52*m + 1 is prime | prime values | 23.4 % |
| A248368 | Primes p such that 52*p + 1 is prime | primes | 47.8 % |
| A249354 | a(n) = n*(3*n^2 + 3*n + 1) | polynomial | 100.0 % |
| A249374 | Prime numbers Q such that the concatenation Q,1,Q is prime | primes | 48.3 % |
| A249606 | Primes of the form 2k^2 + k + 2 | primes | 100.0 % |
| A250036 | Numbers n such that m = floor(n/4) is coprime to n and, if nonzero, m is also a term of the sequence | self-referential | 11.8 % |
| A250046 | Numbers n such that m = floor(n/7) is coprime to n and, if nonzero, m is also a term of the sequence | self-referential | 9.2 % |
| A250047 | Numbers n such that m = floor(n/7) is not coprime to n and, if nonzero, m is also a term of the sequence | self-referential | 11.2 % |
| A250048 | Numbers n such that m = floor(n/6) is coprime to n and, if nonzero, m is also a term of the sequence | self-referential | 8.6 % |
| A250049 | Numbers n such that m = floor(n/6) is not coprime to n and, if nonzero, m is also a term of the sequence | self-referential | 14.8 % |
| A251726 | Numbers n > 1 for which gpf(n) < lpf(n)^2, where lpf and gpf (least and greatest prime factor of n) are given by A020639(n) and A006530(n) | smooth | 18.1 % |
| A251728 | Semiprimes p*q for which p <= q < p^2 | multiplicative | 26.4 % |
| A252089 | Primes p such that p + 26 is prime | primes | 46.9 % |
| A252090 | Primes p such that p + 28 is also prime | primes | 45.9 % |
| A252091 | Primes p such that p + 34 is prime | primes | 46.4 % |
| A252994 | Multiples of 26 | residue class | 9.6 % |
| A253239 | Numbers k such that k^2 + k + 72491 is prime | prime values | 15.0 % |
| A254407 | a(n) = n*(n+1)*(11*n +10)/6 | polynomial | 100.0 % |
| A254963 | a(n) = n*(11*n + 3)/2 | polynomial | 100.0 % |
| A255211 | a(n) = n*(n+1)*(7*n+2)/6 | polynomial | 100.0 % |
| A255634 | Numbers n such that 1 + 16n^2 is prime | prime values | 24.3 % |
| A255687 | a(n) = n*(n + 1)*(7*n + 11)/6 | polynomial | 100.0 % |
| A255842 | a(n) = 2*n^2 + 12 | polynomial | 100.0 % |
| A255843 | a(n) = 2*n^2 + 4 | polynomial | 100.0 % |
| A255844 | a(n) = 2*n^2 + 6 | polynomial | 100.0 % |
| A255845 | a(n) = 2*n^2 + 10 | polynomial | 100.0 % |
| A255846 | a(n) = 2*n^2 + 14 | polynomial | 100.0 % |
| A255847 | a(n) = 2*n^2 + 16 | polynomial | 100.0 % |
| A255848 | a(n) = 2*n^2 + 18 | polynomial | 100.0 % |
| A256177 | Primes congruent to {8, 13, 18, 23} mod 25 | primes | 38.9 % |
| A256290 | Numbers which have only digits 4 and 5 in base 10 | digit rule | 12.4 % |
| A256291 | Numbers which have only digits 5 and 6 in base 10 | digit rule | 10.7 % |
| A256292 | Numbers which have only digits 6 and 7 in base 10 | digit rule | 8.6 % |
| A256340 | Numbers which have only digits 7 and 8 in base 10 | digit rule | 10.0 % |
| A256374 | Primes of the form 7*k^2 + 7*k + 17 | primes | 100.0 % |
| A256376 | Primes of the form 10n^2 - 90n + 163 | primes | 100.0 % |
| A256585 | Primes of the form 3n^2 + 39n + 37 | primes | 100.0 % |
| A256601 | Numbers n such that the decimal expansions of both n and n^2 have 1 as smallest digit and 9 as largest digit | digit rule | 20.2 % |
| A256634 | Numbers n such that the decimal expansions of both n and n^2 have 0 as smallest digit and 7 as largest digit | digit rule | 22.2 % |
| A256674 | Numbers n such that n^2 + n + 712329866165608771 is prime | prime values | 25.2 % |
| A256716 | a(n) = n*(n+1)*(22*n-19)/6 | polynomial | 100.0 % |
| A256718 | a(n) = n*(n+1)*(7*n-6)/2 | polynomial | 100.0 % |
| A256775 | Primes of the form n^2 + 81 | primes | 100.0 % |
| A256776 | Primes of form n^2 + 256 | primes | 100.0 % |
| A256777 | Primes of form n^2 + 625 | primes | 100.0 % |
| A256833 | a(n) = (4*n+3)*(4*n+2) | polynomial | 100.0 % |
| A256834 | Primes of form n^2 + 1296 | primes | 100.0 % |
| A256835 | Primes of form n^2 + 2401 | primes | 100.0 % |
| A256836 | Primes of form n^2 + 4096 | primes | 100.0 % |
| A256837 | Primes of form n^2 + 6561 | primes | 100.0 % |
| A256838 | Primes of form n^2 + 10000 | primes | 100.0 % |
| A256839 | Primes of form n^2 + 14641 | primes | 100.0 % |
| A256840 | Primes of form n^2 + 20736 | primes | 100.0 % |
| A256841 | Primes of form n^2 + 28561 | primes | 100.0 % |
| A256857 | a(n) = n*(n^2 + 3*n - 2)/2 | polynomial | 100.0 % |
| A257042 | a(n) = (3*n+7)*n^2 | polynomial | 100.0 % |
| A257093 | a(n) = n*(n+1)*(13*n+2)/6 | polynomial | 100.0 % |
| A257163 | Primes of the form 3n^2 + 2 | primes | 100.0 % |
| A257210 | Numbers n such that the decimal expansions of both n and n^2 have 1 as smallest digit and 7 as largest digit | digit rule | 34.4 % |
| A257211 | Numbers n such that the decimal expansions of both n and n^2 have 1 as smallest digit and 8 as largest digit | digit rule | 24.2 % |
| A257219 | Numbers that have at least one divisor containing the digit 2 in base 10 | divisor functions | 10.6 % |
| A257220 | Numbers that have at least one divisor containing the digit 3 in base 10 | divisor functions | 11.3 % |
| A257368 | Numbers n such that the decimal expansions of both n and n^2 have 2 as smallest digit and 8 as largest digit | digit rule | 31.2 % |
| A257667 | Primes containing a digit 5 | primes | 25.6 % |
| A257668 | Primes containing a digit 7 | primes | 27.3 % |
| A258261 | Primes p such that 3p - 4 is also prime | primes | 37.6 % |
| A258582 | a(n) = n*(2*n + 1)*(4*n + 1)/3 | polynomial | 100.0 % |
| A258617 | a(n) = (4*n+8)*n^2 | polynomial | 100.0 % |
| A258618 | a(n) = (4*n+9)*n^2 | polynomial | 100.0 % |
| A258663 | Numbers n such that 9n-1 is prime | prime values | 18.8 % |
| A258721 | a(n) = 24*n^2 + 52*n + 29 | polynomial | 100.0 % |
| A258992 | Primes p such that p^2 - 8 is also prime | primes | 40.1 % |
| A259055 | a(n) = 9*n^2 + 18*n + 7 | polynomial | 100.0 % |
| A259555 | a(n) = 2*n^2 - 2*n + 17 | polynomial | 100.0 % |
| A259614 | Numbers congruent to {17,29} mod 36 | residue class | 37.2 % |
| A259749 | Numbers that are congruent to {1,2,5,7,10,11,13,17,19,23} mod 24 | residue class | 6.6 % |
| A259750 | Numbers that are congruent to {14, 22} mod 24 | residue class | 18.0 % |
| A259751 | Numbers that are congruent to {8, 16} mod 24 | residue class | 0.0 % |
| A259754 | Numbers that are congruent to {3,9,15,18,21} mod 24 | residue class | 14.7 % |
| A259755 | Numbers that are congruent to {4, 20} mod 24 | residue class | 9.6 % |
| A260044 | Primes having only {0, 1, 3} as digits | primes | 30.3 % |
| A260125 | Primes having only {0, 2, 3} as digits | primes | 37.5 % |
| A260126 | Primes having only {2, 3, 6} as digits | primes | 39.5 % |
| A260127 | Primes having only {2, 3, 8} as digits | primes | 40.3 % |
| A260128 | Primes having only {2, 3, 9} as digits | primes | 32.6 % |
| A260223 | Primes having only {3, 5, 0} as digits | primes | 39.8 % |
| A260224 | Primes having only {1, 3, 5} as digits | primes | 32.5 % |
| A260225 | Primes having only {3, 5, 6} as digits | primes | 37.8 % |
| A260226 | Primes having only {3, 5, 8} as digits | primes | 40.5 % |
| A260227 | Primes having only {3, 5, 9} as digits | primes | 33.2 % |
| A260260 | a(n) = n*(16*n^2 - 21*n + 7)/2 | polynomial | 100.0 % |
| A260266 | Primes having only {0, 1, 4} as digits | primes | 39.5 % |
| A260267 | Primes having only {1, 2, 4} as digits | primes | 39.0 % |
| A260682 | Löschian numbers (A003136) of the form 6*k+1 | quadratic form | 32.2 % |
| A261034 | Numbers m such that 3*m is squarefree | multiplicative | 5.3 % |
| A261521 | a(n) = n^2 + 2*n + 29 | polynomial | 100.0 % |
| A261893 | a(n) = (n+1)^3 - n^2 | polynomial | 100.0 % |
| A262000 | a(n) = n^2*(7*n - 5)/2 | polynomial | 100.0 % |
| A262221 | a(n) = 25*n*(n + 1)/2 + 1 | polynomial | 100.0 % |
| A263226 | a(n) = 15*n^2 - 13*n | polynomial | 100.0 % |
| A263228 | a(n) = 2*n*(16*n - 13) | polynomial | 100.0 % |
| A264443 | a(n) = n*(n + 5)*(n + 10)/6 | polynomial | 100.0 % |
| A264444 | a(n) = n*(n + 7)*(n + 14)/6 | polynomial | 100.0 % |
| A264445 | a(n) = n*(n + 11)*(n + 22)/6 | polynomial | 100.0 % |
| A264790 | Numbers k such that k^2 + 17 is prime | prime values | 22.9 % |
| A267290 | Primes of the form 11*k^2-11*k+7 | primes | 100.0 % |
| A267522 | a(n) = 4*(n + 1)*(n + 2)*(4*n + 3)/3 | polynomial | 100.0 % |
| A267984 | Numbers congruent to {17, 23} mod 30 | residue class | 36.8 % |
| A267985 | Numbers congruent to {7, 13} mod 30 | residue class | 36.7 % |
| A268201 | a(n) = 4*n^3 - 6*n^2 + 3*n - 1 | polynomial | 100.0 % |
| A268351 | a(n) = 3*n*(9*n - 1)/2 | polynomial | 100.0 % |
| A268484 | a(n) = (n + 1)*(4*n^2 + 14*n + 9)/3 | polynomial | 100.0 % |
| A268577 | Numbers m such that 3*m^2-5 is a prime | prime values | 21.7 % |
| A268581 | a(n) = 2*n^2 + 8*n + 5 | polynomial | 100.0 % |
| A268620 | Numbers whose digital sum is a multiple of 4 | digit rule | 20.2 % |
| A268684 | a(n) = n*(n + 1)*(4*n - 1)/3 | polynomial | 100.0 % |
| A269232 | a(n) = (n + 1)*(6*n^2 + 15*n + 4)/2 | polynomial | 100.0 % |
| A269342 | a(n) = (n + 1)*(2*n + 1)*(4*n + 9)/3 | polynomial | 100.0 % |
| A269457 | a(n) = 5*(n + 1)*(n + 4)/2 | polynomial | 100.0 % |
| A269819 | Numbers that are congruent to {5, 11, 13, 19} mod 24 | residue class | 21.3 % |
| A270109 | a(n) = n^3 + (n+1)*(n+2) | polynomial | 100.0 % |
| A270189 | Numbers n for which (prime(n+1)-prime(n)) is not a multiple of three | primes | 12.3 % |
| A270190 | Numbers n for which prime(n+1)-prime(n) is a multiple of three | primes | 13.7 % |
| A270867 | a(n) = n^3 + 2*n^2 + 4*n + 1 | polynomial | 100.0 % |
| A271347 | Primes p such that p + 38 is also prime | primes | 46.9 % |
| A271366 | Primes of the form 272259344081 + 2*n^2 | primes | 95.1 % |
| A271508 | Numbers that are congruent to {1,4} mod 10 | residue class | 21.5 % |
| A271649 | a(n) = 2*(n^2 - n + 2) | polynomial | 100.0 % |
| A271666 | Primes p such that 4*p^2+4*p-1 is prime | primes | 40.0 % |
| A271667 | Primes p such that 6*p^2+6*p-1 is prime | primes | 42.4 % |
| A271740 | a(n) = 3*n^2 - 2*n + 2 | polynomial | 100.0 % |
| A271779 | a(n) = n^3 + 2*n^2 + 5*n + 11 | polynomial | 100.0 % |
| A271818 | Primes of the form 33164857769 + 2*n^2 | primes | 98.4 % |
| A271819 | Primes of the form 159587584529 + 2*n^2 | primes | 97.0 % |
| A271820 | Primes of the form 236241327599 + 2*n^2 | primes | 96.6 % |
| A271828 | a(n) = 4*n^3 - 18*n^2 + 27*n - 12 | polynomial | 100.0 % |
| A271980 | Numbers k such that 3*k^2 + 39*k + 37 is prime | prime values | 16.7 % |
| A271981 | Primes p such that p + 40 is also prime | primes | 44.5 % |
| A271982 | Primes p such that p + 42 is also prime | primes | 34.9 % |
| A272039 | a(n) = 10*n^2 + 4*n + 1 | polynomial | 100.0 % |
| A272159 | Numbers k such that abs(8*k^2 - 488*k + 7243) is prime | prime values | 15.6 % |
| A272176 | Primes p such that p + 44 is also prime | primes | 46.2 % |
| A272284 | Numbers n such that 43*n^2 - 537*n + 2971 is prime | prime values | 15.9 % |
| A272378 | a(n) = n*(6*n^2 - 8*n + 3) | polynomial | 100.0 % |
| A272933 | Numbers of the form x^2 + 12*y^2 | quadratic form | 26.6 % |
| A272975 | Numbers that are congruent to {0,7} mod 12 | residue class | 30.2 % |
| A273159 | Numbers whose digit sum is divisible by 7 | digit rule | 23.2 % |
| A273188 | Numbers whose digit sum is divisible by 8 | digit rule | 24.8 % |
| A273220 | a(n) = 8n^2 - 12n + 1 | polynomial | 100.0 % |
| A273366 | a(n) = 10*n^2 + 10*n + 2 | polynomial | 100.0 % |
| A274077 | a(n) = n^3 + 4 | polynomial | 100.0 % |
| A274319 | Numbers whose digit sum is divisible by 6 | digit rule | 9.0 % |
| A274357 | Numbers n such that n and n+1 both have 8 divisors | divisor functions | 24.7 % |
| A274546 | Numbers m such that 5*m is squarefree | multiplicative | 11.1 % |
| A275591 | a(n) = n^2 + 9*n + 1 | polynomial | 100.0 % |
| A275709 | a(n) = 2*n^3 + 3*n^2 | polynomial | 100.0 % |
| A275874 | a(n) = (n-4)*(n+1)*(n+3)/6 | polynomial | 100.0 % |
| A276037 | Numbers using only digits 1 and 5 | digit rule | 18.4 % |
| A276039 | Numbers using only digits 1 and 7 | digit rule | 17.2 % |
| A276137 | Numbers without the decimal digits 2, 4, 6 and 8 | digit rule | 15.5 % |
| A276138 | Numbers without the decimal digits 1, 3, 5 and 7 | digit rule | 12.9 % |
| A276378 | Numbers k such that 6*k is squarefree | multiplicative | 11.4 % |
| A276713 | Numbers n such that n and n+3 have the same number of divisors (A000005) | multiplicative | 20.3 % |
| A276819 | a(n) = (9*n^2 - n)/2 + 1 | polynomial | 100.0 % |
| A277108 | a(n) = 4*n*(n+5) | polynomial | 100.0 % |
| A277568 | Numbers k such that k/6^m == 2 (mod 6), where 6^m is the greatest power of 6 that divides k | residue class | 18.8 % |
| A277588 | Numbers k such that k/10^m == 1 mod 10, where 10^m is the greatest power of 10 that divides n | residue class | 30.2 % |
| A277589 | Numbers k such that k/10^m == 2 mod 10, where 10^m is the greatest power of 10 that divides n | residue class | 21.4 % |
| A277590 | Numbers k such that k/10^m == 3 mod 10, where 10^m is the greatest power of 10 that divides n | residue class | 30.4 % |
| A277591 | Numbers k such that k/10^m == 4 mod 10, where 10^m is the greatest power of 10 that divides n | residue class | 21.4 % |
| A277593 | Numbers k such that k/10^m == 6 mod 10, where 10^m is the greatest power of 10 that divides n | residue class | 21.6 % |
| A277976 | a(n) = n*(3*n + 23) | polynomial | 100.0 % |
| A277978 | a(n) = 3*n*(n+3) | polynomial | 100.0 % |
| A277979 | a(n) = 4*n^2 + 18*n | polynomial | 100.0 % |
| A277980 | a(n) = 12*n^2 + 18*n | polynomial | 100.0 % |
| A277984 | a(n) = 6*n*(9*n-5) | polynomial | 100.0 % |
| A277985 | a(n) = 3*(9*n - 1)*(3*n - 2) | polynomial | 100.0 % |
| A277990 | a(n) = 54*n^2 + 6*n | polynomial | 100.0 % |
| A277991 | a(n) = 81*n^2 - 9*n | polynomial | 100.0 % |
| A279607 | Beatty sequence for e/2; i.e., a(n) = floor(n*e/2) | Beatty | 11.2 % |
| A279895 | a(n) = n*(5*n + 11)/2 | polynomial | 100.0 % |
| A280089 | a(n) = 4*n^3 - 3*n + 1 | polynomial | 100.0 % |
| A280273 | Primes p such that 8p^2 - 7p + 2 is also prime | primes | 50.1 % |
| A280304 | a(n) = 3*n*(n^2 + 3*n + 4) | polynomial | 100.0 % |
| A281093 | Primes having only {3, 4, 7, 9} as digits | primes | 28.7 % |
| A281381 | a(n) = n*(n + 1)*(4*n + 5)/2 | polynomial | 100.0 % |
| A281437 | Primes of the form 25*n^2 + 25*n + 47 | primes | 100.0 % |
| A283394 | a(n) = 3*n*(3*n + 7)/2 + 4 | polynomial | 100.0 % |
| A284290 | Primes containing a digit 4 | primes | 25.6 % |
| A284291 | Primes containing a digit 6 | primes | 25.3 % |
| A284292 | Primes containing a digit 8 | primes | 25.4 % |
| A284293 | Numbers using only digits 1 and 6 | digit rule | 16.5 % |
| A284379 | Numbers k with digits 3 and 5 only | digit rule | 15.7 % |
| A284380 | Numbers k with digits 5 and 7 only | digit rule | 15.3 % |
| A284381 | Numbers k with digits 5 and 8 only | digit rule | 14.2 % |
| A284632 | Numbers n with digits 2 and 6 only | digit rule | 14.0 % |
| A284633 | Numbers n with digits 3 and 6 only | digit rule | 11.1 % |
| A289134 | a(n) = 21*n^2 - 33*n + 13 | polynomial | 100.0 % |
| A289250 | Primes p such that p + 4 is a semiprime | primes | 34.6 % |
| A289839 | Primes of the form 8*n^2+8*n+31 | primes | 100.0 % |
| A292509 | Primes of the form k^2 + 23*k + 23 | primes | 100.0 % |
| A292578 | Primes of the form 11*n^2 + 55*n + 43 | primes | 100.0 % |
| A296507 | Numbers m such that m^2 - 13 is a prime | prime values | 18.5 % |
| A296716 | Numbers congruent to {7, 11, 13, 29} mod 30 | residue class | 18.6 % |
| A298360 | Numbers congruent to {3, 7, 13, 27} mod 30 | residue class | 30.9 % |
| A299250 | Numbers congruent to {9, 11, 21, 29} mod 30 | residue class | 33.9 % |
| A301451 | Numbers congruent to {1, 7} mod 9 | residue class | 22.5 % |
| A303740 | Primes of the form 9*k^2 + 3*k + 1 | primes | 100.0 % |
| A305859 | Numbers that are congruent to {1, 3, 11} mod 12 | residue class | 20.4 % |
| A307913 | Numbers without the decimal digits 3, 6 and 9 | digit rule | 11.5 % |
| A308269 | Primes p such that 2*p^2 + 2*p - 9 is prime | primes | 51.7 % |
| A309726 | Numbers k such that k^2 - 12 is prime | prime values | 28.7 % |
| A317633 | Numbers congruent to {1, 7, 9} mod 10 | residue class | 13.8 % |
| A319279 | Numbers that are congruent to {0, 3, 7, 10} mod 12 | residue class | 11.3 % |
| A319280 | Numbers that are congruent to {0, 4, 7, 11} mod 12 | residue class | 15.0 % |
| A319452 | Numbers that are congruent to {0, 3, 6, 10} mod 12 | residue class | 11.7 % |
| A320752 | Primes of the form 5*n^2 - 5*n + 13 | primes | 100.0 % |
| A321212 | Numbers that are congruent to {2, 3} mod 16 | residue class | 20.3 % |
| A328058 | Primes p such that 2*p-1 is a semiprime | primes | 35.4 % |
| A329106 | Primes containing at least one of the following digits: 4, 6, 8, or 9 | primes | 23.4 % |
| A329760 | Primes without {2, 7} as digits | primes | 26.4 % |
| A332797 | Numbers whose smallest prime factor is 23 | multiplicative | 17.3 % |
| A332798 | Numbers whose smallest prime factor is 19 | multiplicative | 16.8 % |
| A332799 | Numbers whose smallest prime factor is 17 | multiplicative | 16.3 % |
| A334294 | Numbers k such that 70*k^2 + 70*k - 1 is prime | prime values | 16.3 % |
| A338477 | Numbers k such that 398*k^2 - 1 is prime | prime values | 16.6 % |
| A343810 | Numbers that contain only the digits 0,4,8 | digit rule | 10.8 % |
| A344872 | Semiprimes of the form 3m+2 | multiplicative | 27.5 % |
| A350676 | Primes p such that p^2 + 2*p + 4 is prime | primes | 50.3 % |
| A350856 | Initial members of prime triples (p, p+2, p+14) | primes | 61.1 % |
| A352800 | Numbers k such that 2*k^2 + 29 is prime | prime values | 16.9 % |
| A353004 | Numbers k such that 2*k^2 + 29 is semiprime | multiplicative | 13.2 % |
| A356498 | Primes p such that 100*p + 11 is also prime | primes | 46.0 % |
| A359555 | Primes p such that (p-2)^2 + 2 is also prime | primes | 48.3 % |
| A360652 | Primes of the form x^2 + 432*y^2 | quadratic form | 51.2 % |
| A360739 | Semiprimes of the form k^2 + 2 | multiplicative | 100.0 % |
| A360740 | Semiprimes of the form k^2 + 3 | multiplicative | 100.0 % |
| A360741 | Semiprimes of the form k^2 + 4 | multiplicative | 100.0 % |
| A361483 | Primes p such that p + 256 is also prime | primes | 47.3 % |
| A361484 | Primes p such that p + 512 is also prime | primes | 47.5 % |
| A361485 | Primes p such that p + 1024 is also prime | primes | 47.0 % |
| A361696 | Semiprimes of the form k^2 + 5 | multiplicative | 100.0 % |
| A361822 | Primes without {2, 5} as digits | primes | 24.2 % |
| A365471 | Numbers whose digits are not all primes | digit rule | 9.6 % |